characteristics viewed include the pattern of the medulla, pigmentation of the cortex and types of scales on the

Answers

Answer 1

Hair examined for forensic purposes is examined both macroscopically and microscopically. Macroscopic traits include length, color, pigment and curliness. The layout of the medulla, coloring of the cortex, and varieties of cuticle scales are all microscopic traits. The medulla is characterized as continuous, intermittent, fragmented, or missing.

The cortex of the hair shaft is the thickest hair layer and is positioned between the hair cuticle and the medulla. It also contains the majority of the pigment that gives the hair its color. medulla, which is also found in skin, is the pigment found in the cortex. Hair scales are an essential component of hair.

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Related Questions

Mutations are changes in the DNA of an organism. Changes caused by mutations can affect the structure and function of different
proteins in the body. Three changes caused by mutations are described below:
• Having two different-colored eyes is caused by a mutation that results in increased or decreased pigmentation in one of the
eyes. While this mutation affects the coloration of the eye, it does not affect how the eye functions.
• Cystic fibrosis is caused by the mutation of a protein in the lungs that causes a sticky mucus to build up in the lung tissue. This
build up of mucus can make it difficult for a person to breathe.
• Bone density can be affected by a mutation. This mutation can cause very dense bones that are almost unbreakable.
What is true about mutations in organism?
A. Changes caused by mutations always have negative effects on an organism.
B. Changes caused by mutations can be harmful, beneficial, or neutral to an organism.
C. Changes caused by mutations always have positive effects on an organism.
D. Changes caused by mutations never have an effect on an organism's cells.
?

Answers

Changes caused by mutations can be harmful, beneficial, or neutral to an organism.

The outcome of a mutation, or alteration in the DNA structure. Mutations can have a wide range of impacts, from being advantageous to having no effect to having fatal consequences, and everything in between.The majority of mutations on the organism they occur in have neither good nor bad effects. Neutral mutations are the name given to these mutations.Some mutations benefit the organism in which they take place. They are known as advantageous mutations. They result in novel protein variants that aid organisms in adjusting to environmental changes.Any arbitrary alteration to a gene's DNA is likely to produce a protein that performs improperly or not at all. Such alterations are probably detrimental.

Therefore, option B. is correct.

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What were the three key observations made by darwin that allowed him to deduce that natural selection is a primary driver of evolution?.

Answers

Organisms produce more offspring than survive, variation exists among members of populations, and advantageous variations increase in relative frequency over time.

Darwin located that unique types of animals had changes that made them higher ideal to their environments. Darwin's observations that caused his principle of herbal choice such as Overproduction in which all species will produce greater offspring than will live to tell the tale to adulthood. Variation ,there are versions among participants of the equal species. Adaptation that have tendencies that growth suitability to a species' surroundings might be handed on

One key statement Darwin made befell even as he became analyzing the specimens from the Galapagos Islands. He observed the finches at the island had been just like the finches from the mainland.

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Paraneoplastic syndromes in cancer involve excessive production of substances by multiple means. a common substance found in excessive amounts resulting from cancer paraneoplastic syndromes is?

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Answer:

Paraneoplastic syndromes in cancer involve excessive production of substances by multiple means. a common substance found in excessive amounts resulting from cancer paraneoplastic syndromes is calcium.

Explanation:

A frequent paraneoplastic illness called hypercalcemia or the higher level of calcium that can affect up to 10% of people who have advanced neoplasms. The much more important cause of this illness is a parathyroid hormone-related protein (PTHrP), which is a paraneoplastic protein.  The abnormal synthesis of parathyroid hormone as well as  parathyroid hormone  frequently results in hypercalcemia, which raises the blood calcium content and causes bone breakage. a, different types of cancers are caused by paraneoplastic syndromes like breast cancer, stomach cancer, lung cancer and ovarian cancer etc. The doctor will have to perform a physical examination and request blood tests to identify paraneoplastic syndrome of something like the nervous system.  

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Organic compounds that are required in small quantities belong to which class of nutrients? trace minerals proteins vitamins lipids

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Organic compounds that are required in small quantities belong to a class of nutrients known as Vitamins. Thus, the correct option for this question is D.

What are Vitamins?

Vitamins may be defined as the type of organic molecules that are significantly essential for the normal growth, development, and nutrition of an individual. These molecules are required in small quantities in the diet because they cannot be synthesized by the body.

The functions of the vitamins are as follows:

Support the body in maintaining good and proper health.Play an important role in the repairing of tissues.Ability to conflict against aging and sensescence.The proper development and maintenance of new cells.These organic molecules definitely keep bones, teeth, nails, etc. healthy.

Therefore, vitamins are the organic compounds that are required in small quantities and belongs to a class of nutrients. Thus, the correct option for this question is D.

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You find a plant that has a unique photosynthetic pigment. the leaves of this plant appear to be reddish yellow. what wavelengths of vidible light are not being absorbed by this pigmnet?

Answers

The wavelengths of visible light that are not being absorbed by this photosynthetic pigment are from 300 to 700 nm except for 570 nm to 590 nm. and 620 nm to 750 nm.

What is Photosynthetic pigment?

A photosynthetic pigment may be defined as a pigment that is present in chloroplasts or photosynthetic bacteria that captures the light energy necessary which is necessary for photosynthesis. These pigments are also known as accessory pigments.

Photosynthesis in plants is significantly dependent upon capturing light energy in the pigment chlorophyll and in particular chlorophyll a. This chlorophyll resides mostly in the chloroplasts and gives leaves their specific green color.

The yellow color absorbs the light of wavelengths 570 nm to 590 nm while the red color absorbs the light of wavelengths 620 nm to 750 nm.

Therefore, the wavelengths of visible light that are not being absorbed by this photosynthetic pigment are appropriately represented above.

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HELP ME ASP I WILL GIVE YOU BRAINLEST AND MORE POINTS

Answers

Answer:

The answer is the nucleus,

Explanation:

Can I have brainliest? It would help me out, if not thanks anyways! Hope this helped and have a nice day!

Immune system cells differentiate healthy versus unhealthy cells in the body by examining the ______.

Answers

Immune system cells differentiate healthy versus unhealthy cells in the body by examining the glycocalyx part of the cell.

What is Glycocalyx?

The Glycocalyx may be defined as a coat that significantly covers the outside of organisms such as bacteria. It is composed or made up of glycoproteins, glycolipids, and polysaccharides.

The major function of the glycocalyx found on the bacteria is that it is like a protective coat that forms the protection for the bacterial cell from the host reactor, which mediates the part of the immune system.

Therefore, the glycocalyx is the part of the cell that plays an essential role in the immune system while differentiating healthy versus unhealthy cells.

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What is the difference between the visceral and parietal layers of pleura and peritoneum?

Answers

Answer:

The difference between the visceral and parietal layers of pleura and peritoneum is:

Explanation:

The main differentiation between both visceral as well as parietal is that the former forms one of the 2 layers of the serosa that covers the organs, whilst the latter forms the second layer which lines the body cavity's walls. As a result, structures connected to organs are referred to as visceral, whereas those attached to the wall of most of the body cavity are called parietal.

The anatomical phrases visceral as well as parietal are used to characterise the serous membrane's components and structures. The walls of the whole organs in the thoracic as well as abdominopelvic cavities are often covered by a thin membrane called the serosa.

Aside from that, the pericardium, pleura, as well as peritoneum are indeed the serous membranes connected to the 3 serous chambers in the human body.

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How are bacteria, archaea, fungi, protozoa, algae, and viruses distinguished on the basis of structure?

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Bacteria, archaea, fungi, protozoa, algae, and viruses are distinguished on the basis of a structure by the three-domain system.

Three-domain system is a classification system in which cellular life is classified into three types which are archaea, bacteria, and eukarya domain.

Archaea are organisms that are made up of cells that lack a nucleus and other membrane-bound organelles which means that they are prokaryotic.

The domain bacteria differs from archaea in the composition of the cell wall and cell membrane in that the cell wall of bacteria consists of peptidoglycan while the cell walls of archaea do not consist of peptidoglycan. The lipids in the membrane of archaea are enclosed with hydrocarbons, unlike the bacteria in which lipids are enclosed with fatty acids.

Fungi and algae are included in the domain eukarya since they consist of a membrane-bound nucleus and hence are eukaryotic. Fungi and algae differ in cell structure in that the cells of algae have a single nucleus while the cells of fungi are multinucleated.

Viruses are not considered a part of any of the domains since viruses are not made of cells and they don't have the capability to perform any metabolic function. They remain inactive outside the host cell.

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Systemic blood pressure is determined by which factor(s)? (select all that apply.)

Answers

The factors of systemic blood pressure are,

-Heart rate

-Stroke volume

-Cardiac output

-Systemic vascular resistance

What causes systemic blood pressure?

Constriction of the tiny arteries is typically what raises systemic (or body) blood pressure (arterioles). As a result, the peripheral resistance to blood flow rises, increasing the stress on the heart and elevating arterial pressure. Both the greatest (Systolic) and lowest (Diastolic) points of blood pressure are recorded.

In most cases, systemic hypertension goes unnoticed. The disease is sometimes referred to as the silent killer because of this. You can only detect hypertension if you have your blood pressure monitored.

In the event that hypertension becomes an emergency, defined as a systolic pressure of 180 mm Hg or higher or a diastolic pressure of 120 mm Hg or higher.

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What produces four daughter cells?
a) meiosis
b) mitosis
c) both of these
d) neither of these

Answers

The correct option is (a) Meiosis

Meiosis produces four daughter cells.

What is Meiosis?Meiosis, often known as "lessening" since it involves a reductional division, is a unique process used by sexually reproducing organisms to produce gametes, such as sperm or egg cells. It comprises two rounds of division, producing four cells with only one copy of each chromosome as a final product (haploid). Additionally, each chromosome undergoes genetic material cross-pollination between the paternal and maternal copies before division, resulting in novel combinations of the genetic code on each chromosome. Later, when a male and a female go through meiosis, the haploid cells they generate unite to form the zygote, another cell with two copies of each chromosome.

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During a muscle contraction, muscle fibers shorten when _____.
myosin heads rotate when they attach to actin, causing the myosin filaments to fold in the middle.

Answers

yeah you got the answer right there

The intellectual trait that is the opposite of intellectual empathy is? intellectual cowardice. intellectual narrow-mindedness. intellectual humility. intellectual autonomy.

Answers

The  opposite of intellectual empathy is intellectual narrow mindedness.

What does intellectual empathy mean?

Intellectual empathy involves the ability to imaginatively put oneself in the place of others in order to genuinely understand them .

Example of intellectual empathy is when an individual achieves intellectual empathy when they actively put themselves in someone else's shoes in terms of how they think and feel.

It's opposite is is intellectual narrow mindedness . It is thinking centered on self .

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How do doctors estimate the extent of burn damage associated with such dangerous fluid loss?

Answers

The doctors estimate the extent of burn damage associated with such dangerous fluid loss using the rule of nines.

The rule of nines is a technique a doctor and other emergency unit caregivers used to estimate the degree of burns in the body of a person. This was discovered by Dr. Wallace thus also referred as Wallace rule of nines. The doctor would examine the patient with burns and quickly calculate the degree of burns by adding burns in specific areas of the body.

Here are some of the calculation of the rule the burns in arms including the hands constitutes 9%, front of the body 18%, genitalia 1%, head and neck 9%, legs constitutes 18% and back of the body also makes up for 18%.

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In a nucleic acid polymer, the bonds that help to hold double-stranded regions together occur between what parts of the nucleotide monomers?.

Answers

The bonds that help to hold double-stranded regions together occur between nitrogenous bases in a nucleic acid polymer.

A linear polymer (strand) of nucleotides that make up a nucleic acid. Each nucleotide is made up of three parts: a pentose sugar, an acidic phosphate group, and a purine or pyrimidine nucleobase (also known as nitrogen base or simply base). A nucleoside refers to a substructure consisting of a nucleobase and a sugar. The types of nucleic acids differ in the structure of the sugars within the nucleotides. DNA contains 2'-deoxyribose, whereas RNA contains ribose (the only difference being the presence of the hydroxyl group).Adenine, cytosine, and guanine are found in both RNA and DNA, while thymine and uracil are found in only one of the two types of nucleic acids. In nucleic acids, sugars and phosphates are linked.

Therefore, the correct answer is nitrogenous bases.

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Which epithelium is best suited for resisting abrasion and preventing pathogen entry into deeper tissues?

Answers

Epithelial cells best suited for resisting abrasion and preventing pathogen entry into deeper tissues are stratified squamous epithelial cells.

Stratified cells are layered cells, squamous cells are flat and epithelial cells are covering cells. Therefore, stratified squamous epithelial cells are flattened, layered covering cells arranged on a basement membrane.

Stratified squamous epithelial cells have very little to no intercellular spaces which prevent pathogen from passing through and entering into the deeper tissues. They are well suited for resisting abrasion because the uppermost layers are subsequently sloughed off and replaced before the basement membrane is exposed. These types of cells form the outermost layer of the skin.

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Alcoholic fermentation:__________
a. is carried out by yeasts.
b. produces far less atp than aerobic respiration.
c. all answers are correct.
d. produces ethanol.
e. produces carbon dioxide.

Answers

Option(c)All the answers are correct is the right answer.

We can observe that alcoholic fermentation is carried out by yeasts and they produce ethanol and carbon dioxide. Then we can observe that they also also produce far less ATP than aerobic respiration during alcoholic fermentation and this makes all the given answers are correct.

What is the fermentation of alcohol process?Alcoholic fermentation is a sophisticated biochemical procedure in which yeasts transform carbohydrates into ethanol, carbon dioxide, and other metabolic byproducts that affect the meals' chemical make-up and sensory qualities.

What does alcoholic fermentation look like in practice?The process of utilizing yeasts to turn sugars into alcohol is known as alcoholic fermentation. Higher-ABV beverages can be made from already-fermented base items through the distillation process. (For instance, distilling beer wort yields whiskey, whereas distilling wine yields brandy.)

Which enzyme causes the fermentation of alcohol?An enzyme complex called zymase is responsible for catalyzing the conversion of sugar into ethanol and carbon dioxide. Yeasts naturally contain it.

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Composed principally of amino acids, ______ act as biological catalysts, facilitating metabolic activities of the cell.

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Composed principally of amino acids, enzymes act as biological catalysts which facilitate the metabolic activities of the cell.

What are enzymes?

Enzymes may be defined as biocatalysts that significantly increase the rate of a chemical reaction without being consumed in the overall process. It may be thought that all cellular reactions and processes are mediated by enzymes.

Most of the enzymes are proteins which are known as the polymers of amino acids. Due to the presence of amino acids in their structure, enzymes are highly specific. Enzymes significantly exhibit enormous power.

Therefore, composed principally of amino acids, enzymes act as biological catalysts which facilitate the metabolic activities of the cell.

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All of the carbohydrates in the plasma membrane face the cell exterior. which direction do the carbohydrates on internal cell membranes face?

Answers

The direction the monolayer will face will be established randomly. All of the carbohydrates in the plasma membrane face the cell exterior.

What are carbohydrates?

Sugar molecules make up what is known as a carb. The three primary nutrients present in foods and beverages are proteins, fats, and carbohydrates. Carbohydrates are converted to glucose by your body. Your body's cells, tissues, and organs primarily use glucose, also known as blood sugar, as a source of energy.

Bread, beans, milk, popcorn, potatoes, cookies, spaghetti, soft drinks, corn, and cherry pie are just a few examples of foods high in carbohydrates, both healthy and unhealthy. A variety of forms are also available for them. Sugars, fibres, and starches are the three most prevalent and plentiful forms.

Due to their longer sugar molecules, which take longer for the body to break down, complex carbohydrates are regarded as "good" carbohydrates.

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Which method would be best when doing a study on the genetic propensity for cancer in a given population?

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Genealogical method would be best when doing a study on the genetic propensity for cancer in a given population.The genealogical technique is a well-mounted technique in ethnography.

The technique owes its foundation from the ee-e book of British ethnographer W. H. R. Rivers titled "Kinship and Social Organisation" in 1911. Genealogical evaluation has confirmed a beneficial technique to recognize the origins and frequencies of hereditary sicknesses in lots of populations.

This sort of evaluation is primarily based totally on records that offer genealogical hyperlinks among people in a given population, via their ancestors who have been diagnosed in the course of the development of the genealogies. It can yield precious facts approximately the shape of the population, consisting of kinship and inbreeding levels.

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When 2 or more plant proteins are combined to compensate for deficiencies in essential amino acid content in each protein, the proteins are called:_________

Answers

When 2 or more plant proteins are combined to compensate for deficiencies in essential amino acid content in each protein, the proteins are called Complementary protein

What is a Protein ?

Amino acids, the numerous subunits that make up proteins, bind together in a certain sequence to specify a protein's function. There are 20 amino acids, some of which the body cannot produce. These must be ingested through food since they are considered necessary.

Incomplete proteins from two or more foods can be combined to create complementary proteins, which can supply enough of each of the required amino acids. As long as the day's meals have all the complementary proteins, they do not necessarily need to be consumed simultaneously.

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The concept that the distribution of one phenomenon is related to the location of other phenomenon is known as:__________

Answers

Is known as Spatial association

True or false: once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.

Answers

It is true that once glucose, galactose, and fructose enter the absorptive cells, they are transported to the portal vein and then to the liver.

Absorptive cells are also known as enterocytes. These cells line the lumen of the small intestine and the colon. They are meant to absorb the nutrients from the digested food inside the lumen of intestine. Apart from absorption, they also transport the nutrients across the membrane.

Portal vein is the blood vessel that transports blood from the GI tract, pancreas, gall bladder and spleen into the liver. This blood vessels belongs to the portal venous system. Its location is the upper right quadrant of the abdomen.

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A (n) __________is used to transfer dna from one bacterium to another conjugation pilus flagella lipopolysaccharide teichoic acid fimbriae.

Answers

The conjugation pilus is used to transfer dna from one bacterium to another.

what is pilus?

Many bacteria have an extension on their surface called a pilus, which resembles hair. Although some researchers reserve the name pilus for the appendage required for bacterial conjugation, the terms pilus and fimbria can be used interchangeably. Oligomeric pilin proteins make up the majority of all pili structures.

DNA can be transferred between bacteria during the process of bacterial conjugation thanks to conjugative pili. Because they allow for the exchange of genes through the development of "mating pairs," they are frequently referred to as "sex pili," in analogy to sexual reproduction.

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What adaptation is commonly found in organisms of deep pelagic and benthic communities?

Answers

Gigantism is the adaptation commonly found in organisms of deep pelagic and benthic communities.

What is adaptation?

The biological process through which organisms adapt to new surroundings or modifications in their present settings is known as adaptation in evolutionary theory. Even while adaptation was a topic of discussion among scientists before the 1800s, Charles Darwin and Alfred Russel Wallace did not create the idea of natural selection until then.

Wallace thought that adaptation of organisms to shifting environmental conditions was somehow related to the evolution of species. Wallace and Darwin both went beyond basic adaptation when formulating the notion of evolution by natural selection by describing how organisms adapt and evolve.

According to the theory of natural selection, features that may be handed down enable animals to adapt to their environment more effectively than other members of their own species. As a result, the species evolves because it can survive and reproduce better than other members of the species.

Therefore, gigantism is an adaptation found in deep pelagic and benthic communities.

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A new pollution law requires businesses to pay for inspections of their plants by independent pollution-monitoring firms. What effect is this likely to have?.

Answers

Given the current circumstances, a new pollution rule that requires enterprises to pay for independent pollution-monitoring companies to audit their facilities has the impact of (C) Reduce Productivity.

This is because if output is decreased, unusual resource wastage can be avoided, which is better to overproduction when independent pollution monitoring firms audit businesses for analysis. These choices are thus appropriate given the circumstances.

Options  A, B, and D are not feasible since their effects are not appropriate for the circumstance and are not at all preferred. These choices are hence unsuitable.

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Question correction:

A new pollution law requires businesses to pay for inspections of their plants by independent pollution-monitoring firms. What effect is this likely to have?

A. Increase productivity

B. Increase the capital stock

C. Reduce productivity

D. Increase the demand for labor in those firms

Answer:

A new pollution law requires businesses to pay for inspections of their plants by independent pollution-monitoring firms. Reduction in productivity Effect is this likely to have.                              

Explanation:

Environmental contamination is a long-standing, well-known issue. Environmental monitoring is essential for determining pollution levels and is the foundation for successful environment protection.

Among the several biomonitors used, plants have a direct connection to the environment. Plant species may be examined in both terrestrial and aquatic habitats, and their responses to various contaminants in the air, water, and soil are often quite sensitive. They may evaluate the effects across time and space as well as identify nearby contaminant sources. Therefore, using plants to analyse and regulate the environment has enormous potential.

The application of plants within the framework of dependable and understandable methods for determining environmental contamination is the main topic of this main issue of Plants.

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What are ocean animals' biological clocks in tune with so that their lives are not upset by high and low tides?


A. Lunar rhythm

B. Annual rhythm

C. Seasons

D. Rain schedule

Answers

The ocean animals also keep time using the  Lunar rhythm.

What are ocean animals?

The ocean animals are the animals that can be found in the ocean. We know that the ocean is salt water. Another name for ocean animal are marine animals. In the Marine ecosystem there are high and low tides.

More recent scientific evidence has shown that, aside from the internal biological clocks of the organisms and that of the rising and falling tides. The ocean animals also keep time using the  Lunar rhythm.

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Answer:

A. Lunar rhythm

Explanation:

Scientific evidence has shown that, aside from the internal biological clocks of the organisms and that of the rising and falling tides, the ocean animals also keep time using the Lunar rhythm.

Tempo is the rhythm with which the load is moved during a repetition, and affects which metric?

Answers

Tempo is the rhythm with which the weight is moved at some point of repetition and influences the intensity. Rhythm is the sample of sound, silence, and emphasis in a song. performed, musical rhythm additionally stipulates how lengthy they may be performed and with what intensity.

Metric modulation is a extrade in pulse rate (tempo) and/or pulse grouping (subdivision) that's derived from a notice cost or grouping heard earlier than the extrade.

Examples of metric modulation can also additionally encompass adjustments in time signature throughout an unchanging tempo, however the idea applies extra in particular to shifts from one time signature/tempo (metre) to another, in which a notice cost from the primary is made equal to a notice cost with inside the second, like a pivot or bridge.

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The scientific definition of ______ refers to changes in a species or population over time. systematics genetics evolution biology

Answers

The scientific definition of evolution refers to changes in a species or population over time.

Evolution is a long-term process. It may take millions of years and several generation for an evolution to occur. The cause of evolution can be genetic as well as environmental. The evolution is a result of mutation. Evolution generally gives rise to new species, that is different from its ancestral population.

Population is a group of similar type of organisms.  These organisms live in the same habitat, require same resources and have same kind of habits. The most essential criteria that defines a population is that the organisms of a population can mate with each other and produce offspring.

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Write one paragraph below describing your thoughts regarding the dihydrogen monoxide

Answers

Answer:

it is a bad an in appropriate way of pollution

Explanation:

hydrogen monoxide know as c0 which also means toxic

it is harmful to the body health and this is caused by irregular dispose of waste to the atmosphere

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