Temperate climates are not usually conducive to organic preservation at archaeological sites because of variable temperatures and fluctuating precipitation
What is Climate ?The long-term pattern of the weather in a place is called the climate. Hour by hour, day by day, month by month, or even year by year, the weather might change. A region's climate is determined by its weather patterns, which are typically monitored for at least 30 years.
The average of the weather is the climate. As an illustration, you can anticipate snow in the Northeast in January or hot and muggy weather in the Southeast in July. Climate is this. Extreme values, such as record-breaking high temperatures or heavy rainfall, are also part of the climatic record.Learn more about Climate here:
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Metabolic rate of alcohol is unaffected by exercise. group of answer choices true false
Metabolic rate of alcohol is unaffected by exercise TRUE.
The basal metabolic rate (BMR) calculates the bare minimum of calories required for a person to maintain their essential bodily functions over the course of a 24-hour period of rest. Such processes include breathing as an example. circulation. digestion as well as nutrient absorption
The three elements that make up the metabolic rate are the baseline metabolic rate, the energy expended during physical activity, as well as the thermic effect with food.
Alcohol reduced shivering metabolic rate by an overall mean of 13%, insufficient to affect cooling rate.
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why do the hottest days and coldest days of summer and winter occur about one month after the longest day or night?
The hottest days and coldest days of summer and winter occur about one month after the longest day or night because the land and oceans have to warm up, too, before the truly hot summer heat can begin.
What is Summer?This is a type of season which is characterized by the sun being very hot at that time of the year. There is usually very little precipitation and the temperature is usually high during this period.
Winter on the other hand, is the coldest time of the season and is characterized by low sunlight and a very low temperature.
However, the hottest days and coldest days of summer and winter occur about one month after the longest day or night because of the time taken to warm up the land and oceans before the season starts before the summer heat begins to be felt.
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Stem cells that will form t lymphocytes mature in the stem cells that will form t lymphocytes mature in the:_____.
a. liver.
b. thymus.
c. bone marrow.
d. kidneys.
e. spleen.
Stem cells that will form t lymphocytes mature in the stem cells that will form t lymphocytes mature in the Thymus.
T cells proliferate and differentiate into memory T cells, helper, regulatory, or cytotoxic T cells in the thymus. After that, they are planted into perivascular tissues or moved around by the lymphatic or blood systems.
Thymus, pyramidal lymphoid organ located just below the sternum at the level of the heart in humans. The organ is called the thymus because its shape resembles that of a thyme leaf.
The organ is composed mainly of two types of cells called respectively lymphocytes and reticular cells. The reticular cells form a loose network like in a lymph node, while the spaces between them are filled with lymphocytes. The cortex, characterized by its high concentration of lymphocytes, is the site of intense lymphocyte proliferation. Lymphocyte proliferation in the thymus is evenly distributed throughout the cortex and not in the germinal centers as is the case in other lymphoid tissues. Some of the daughter cells - called T cells (derived from the thymus) - produced in the cortex migrate to the marrow, where they enter the bloodstream through the medullary veins and join the lymphocytes in the peripheral blood and lymphoid organs.
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What sentence represents a hypothesis?
Answer:
2
Explanation:
A hypothesis uses "IF" and "THEN"
Calculate Based on Figure 1-2, if you have 2 L of water, how many milliliters do you have?
Answer:
2 000ml
Explanation:
1 L of water is made up with 1000ml so we combine two 1000ml to make 2L which is 2000ml
A location on a chromosome that codes for biochemical variations in the phenotype is called:_________
A gene is a region on a chromosome that codes for phenotypic biochemical differences.
Gene, what do you mean?The fundamental structural and operational component of heredity is a gene. DNA is the component of genes. Some genes serve as blueprints for the synthesis of proteins. Many genes do not, however, code for proteins. A few hundreds DNA bases to more than 2 million bases make up a gene in a human.A gene example is what?You might acquire the characteristic for green eyes from your parents, for instance, if both of them have them. Alternatively, if your mother has freckles, you may also have them if you received the freckle gene from her. All animals and plants contain genes in addition to human beings.
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Question
A student conducts an experiment to determine how the temperature of water affects the time for salt to dissolve in 100 mL of water. The student makes one measurement for each temperature.
What is one way that the student could improve the experiment?
perform multiple trials for each measurement instead of just one
perform one trial for each measurement but use a different volume of water for each test
use a different type of salt for each temperature of water
use a different timer for each temperature of water
The ________, first proposed by francis crick, summarizes the relationships between dna, rna, and protein.
The fundamental doctrine describes the connection between DNA, RNA, and proteins and was first put forth by Francis Crick.
The fundamental tenet of molecular biology is the idea that genetic information can only move from DNA to RNA to protein or from RNA to protein directly. Cells create proteins through a process known as protein synthesis. Transcription and translation take place simultaneously. The conversion of genetic information from DNA to mRNA in the nucleus is known as transcription. Initiation, elongation, and termination are its three stages. The process of transcription involves moving genetic information from DNA to mRNA in the nucleus. Initiation, elongation, and termination are its three stages. Following processing, the mRNA transports the information to a ribosome in the cytoplasm. The ribosome, which is made up of proteins and rRNA, is where translation happens. The mRNA's instructions are read during translation, and tRNA then transports the appropriate structure of a protein to the ribosome. rRNA then facilitates the formation of links seen between amino acids, resulting in a polypeptide chain. To create the finished protein, a polypeptide chain may go through additional processing after being created.
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Which cell participates in cell-mediated immunity and is antigen specific and directly cytotoxic for target cell?
Th1 cells and Cytotoxic T cells participates in cell-mediated immunity and is antigen specific and directly cytotoxic for target cell.
What is an antigen?An antigen (Ag) is a molecule, molecular structure, foreign particle, pollen grain, or any other foreign substance that can attach to a particular antibody or T-cell receptor. An immunological response may be triggered by antigens present in the body. A chemical that produces antibodies was formerly referred to as an antigen. Antigens can be proteins, peptides (amino acid chains), lipids, nucleic acids, polysaccharides (chains of monosaccharides/simple sugars), or polypeptides.
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The skeletal muscle fibers that fatigue most easily are:_______
1. red muscle fibers.
2. slow oxidative (type i) fibers.
3. fast glycolytic (type iib) fibers.
The skeletal muscle fibers that fatigue most easily are fast glycolytic (type iib) fibers.
What is skeletal muscle fibers ?Flexible muscle fibers that range in diameter from less than half an inch to just over three inches make up skeletal muscles. Typically, these fibers run the entire length of the muscle. You may perform a wide variety of actions because to the muscles' ability to move bones when their fibers contract (tighten).
What are the characteristics of skeletal muscle fibers?Skeletal muscle is striated, similar to cardiac muscle; it has long, thin, multinucleated fibers that are crossed is covered by tiny red and white lines that give the muscle its distinctive appearance. Connective tissue holds skeletal muscle fibers together while allowing them to communicate with blood vessels and neurons.
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The resolving power of the earliest electron microscopes was at least ten times higher than that of the light microscopes, mainly because?
The resolving power of the earliest electron microscopes was at least ten times higher than that of the light microscopes, mainly because the wavelength of electrons is much shorter than the wavelength of light.
The electron microscope uses a beam of accelerated electrons to magnify the object whereas the light microscope uses visible light for this purpose. Unlike the light microscope, the electron microscope uses electromagnets as lenses.
The magnification of the electron microscope is much higher as compared to the light microscope and it produces high-resolution images. However, the Specimen preparation of an electron microscope takes several days while the Specimen preparation of the light microscope takes only a few minutes.
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Meiosis is the process that produces sperm and eggs by reducing the gamete cell's number of chromosomes from _____to _____.
Select one:
a.
diploid to haploid
b.
haploid to polyploidy
c.
diploid to monoploidy
d.
haploid to diploid
it's not b
Answer: Your answer my boy is A.) diploid to haploid.
Explanation: I just did this assignment .It would be great if I could get Brainliest.
Many foods, for example, bacon and salt cod, are preserved with high concentrations of salt applied to the outside of the meat. how can high concentrations of salt inhibit the growth of bacteria?
High concentrations of salt can inhibit the growth of bacteria by causing the bacteria to shrink because water leaves the bacterial cell.
What is a Hypertonic solution?This is defined as a type of solution which has a large amount of particles which are dissolved thereby making it have a high concentration.
High concentrations of salt applied to the outside of the meat means it is hypertonic and therefore causes the bacteria to shrink because water molecule leaves the cells thereby destroying their structure preventing metabolic reactions from occurring which leads to their death.
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Which body activity would be most affected in a patient lacks an adequate number of erythrocytes?
Oxygen transport would be most affected in a patient lacks an adequate number of erythrocytes
What is erythrocytes ?Erythrocytes, also referred to as red blood cells, carry oxygen to your body's tissues. As oxygen is converted to energy, carbon dioxide is released by your tissues. Additionally, your red blood cells carry carbon dioxide to your lungs so you can exhale it.
Anemia, or low RBC counts, can impair the body's capacity to circulate oxygen and nutrients throughout the cardiovascular system. It may make you feel drained, woozy, and queasy. Iron deficiency anaemia is the most prevalent type of anaemia. Blood loss, malnutrition, or kidney issues might cause this.Dehydration can be indicated by a high red blood cell count. heart illness. Red blood cells are produced in excess due to the bone marrow condition polycythemia vera.Learn more about Erythrocytes here:
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In _____________ molecules show a net movement from greater to lesser concentration due to the random motion of the molecules.
In diffusion molecules show a net movement from greater to lesser concentration due to the random motion of the molecules.
What is diffusion ?The net movement of anything, typically from a place of higher concentration to a region of lower concentration, is known as diffusion. A gradient in the Gibbs free energy or chemical potential drives diffusion.
What is diffusion process of cell?In order to achieve equilibrium, diffusion is the random movement of molecules with a net direction toward areas of lower concentration. When tiny molecules travel through the lipid bilayer of a cell membrane, simple passive diffusion takes place.
Examples of diffusion :The mingling of two substances as a result of the motion of their particles is known as diffusion. Diffusion is demonstrated by the way a room fills with the scent of perfume.Due to the huge particle spacing and high kinetic energy, gases spread quickly.To know more about kinetic energy visit :
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Smooth muscle fibers can sustain a contraction without fatigue by allowing dephosphorylated myosin to remain attached to actin in what is called the ________.
Smooth muscle fibers can sustain a contraction without fatigue by allowing dephosphorylated myosin to remain attached to actin in what is called the latch state.
What is muscle contraction?Muscle contraction is defined as an action potential travels along the nerves to the muscle. The beginning of muscle contraction occurs with signal generated from the nervous system. There are mainly two types of muscle contraction and the situation occur when a muscle contracts and a change in size takes place.
Isotonic concentric contraction is the type of muscle contraction in which muscle shortening takes place. Isotonic eccentric contraction is the type of muscle contraction in which the muscle lengthening whilst it is under tension.
Therefore, Smooth muscle fibers can sustain a contraction without fatigue by allowing dephosphorylated myosin to remain attached to actin in what is called the latch state.
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Which component of the membranous labyrinth is used to transmit auditory information?
The cochlea is the component of the membranous labyrinth used to transmit auditory information.
The cochlea is a hollow, spiral-shaped structure of the internal ear that plays a key role in hearing. The spiral structure of the cochlea enables it to detect various sound frequencies and helps in the transduction of the electrical impulse which is interpreted by the brain.
The sound vibrations are carried through a fluid known as endolymph. The hair cells in the organ of Corti, inside the cochlear duct, then transmit the mechanical vibrations into electrical impulses. The electrical nerve impulses are then carried by the vestibulocochlear nerve from the cochlea to the brain for interpretation.
Auditory vibrations are transmitted by the tympanic membrane and through the labyrinth, the fluid inside the cochlea. This fluid then activates the organ of the corti which then processes the vibrations to produce electrical impulses and then send them to the brain.
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Proteins and carbohydrates are built up from their basic building blocks by a process known as:_________
Proteins and carbohydrates are built up from their basic building blocks by a process known as Dehydration synthesis reactions.
The crucial procedure known as Dehydration Synthesis Reactions brings together the constituent parts of carbohydrates, proteins, lipids, and nucleic acids. With the removal of water, these processes combine two or more monomers to create a sizable component of a macromolecule.
Dehydration synthesis reactions include the combining or synthesis of the same or distinct monomer units while removing the water molecules from the reaction. It is a specific type of condensation reaction in which two additional molecules cause the elimination of two water molecules.
During dehydration synthesis, a water molecule is either released when the hydrogen of one monomer reacts with the hydroxyl group of another monomer or when two hydrogens from one monomer join with one oxygen from the other monomer.
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The principle that describes the technique of having body parts and appendages dragged behind the rest of the body and continue to move when the body stops, like a cape, is called:__________
The principle that describes the technique of having body parts and appendages dragged behind the rest of the body and continue to move when the body stops, like a cape, is called Follow Through and Overlapping Action.
Difference between follow through and overlapping actionThe concept of "Follow Through" states that an item or its loosely coupled elements will keep moving even after the character has stopped. Similar to overlapping action, which describes how various sections of an object or body typically move at various rates.
What is the overlap principle?The concept of overlapping action states that various bodily components will move at various velocities. As a result, when you walk, your arms will move more slowly than your head. Animation may have believable motion by using both overlapping action and follow-through.
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The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid. True or false?.
True
The parent cell that enters meiosis is diploid, whereas the four daughter cells that result are haploid.
In both meiosis I and meiosis II, the DNA content is cut in half. In meiosis I, the ploidy level transforms from diploid to haploid, and it stays haploid in meiosis II.Which of these is a meiotic function?Gametes, or sex cells, are created during meiosis. There are four haploid daughter cells formed during meiosis (containing half as many chromosomes as the parent cell).Which four primary stages of meiosis are there?Since meiosis involves two rounds of cell division, a beginning cell can generate four gametes (eggs or sperm). Cells move through prophase, metaphase, anaphase, and telophase with each round of division.To learn more about meiosis visit:
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Aspirin, like many pharmaceutical drugs, can access the cell because it is a weak acid. this occurs because:_________
Aspirin can access the cell because it can cross the membrane, as a weak acid, in its unchanged form.
Aspirin is a non-steroidal anti-inflammatory drug, commonly referred to as NSAID. Aspirin is a common drug (or a weak acid) that is used to treat minor ailments like headaches, mild fever, body aches, etc. It is also used as an anti-inflammatory drug and also to reduce the risk of blood clots after heart attacks. It can be purchased from a medical store without the prescription of a doctor.
Aspirin is not recommended for children below 18 years of age. If a child takes it with the flu or cold, it may have adverse effects. It can cause Reye's syndrome in children which can cause permanent brain injury.
Minor symptoms in the human body are caused by prostaglandins. Prostaglandins are substances produced by certain proteins, called cyclooxygenases. Aspirin inhibits this protein and thus prevents symptoms like pain, inflammation, headache, cardiovascular events, etc.
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What is one of the simplest checks for overall mobility, and is commonly used by usa weightlifting for athlete preparation, and to test readiness for the snatch specifically?
Apley's test ,Toe touch test Overhead squat Sit and reach flexibility test 66.The Apley scratch take a look at is a shoulder flexibility, used to assess the power and mobility of your shoulder joint. The also can be used to evaluate the variety of motion (ROM) of your shoulder, inclusive of flexion and extension.The Apley returned scratch particularly assessments the mobility of your shoulders. The intention of the shoulder flexibility take a look at is to save you hyperextension of the joint.
Hyperextension can cause an acute or continual damage of the rotator cuff muscle group, inclusive of supraspinatus, infraspinatus, teres minor, and subscapularis. These rotator cuff accidents may be due to repetitive movements, including the ones worried with swimming, tennis, volleyball, racquetball, or any game that calls for throwing or catching.1
Monitoring assessments are normally used to evaluate weightlifter’s preparedness for competition. Although diverse tracking assessments were used, it isn't always clean which take a look at is the most powerful indicator of weightlifting performance.
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The non-mendelian inheritance pattern observed in snail coiling is most related to ______.
The non Mendelian inheritance pattern observed in snail coiling is most related to maternal inheritance.
Why is genetic inheritance important?Genetic inheritance is necessary for evolutionary change. It describes how genes are passed from one generation to the next.It might consequently initially seem surprising then, that genetic inheritance itself is rarely inculded in life research.
The phenotype controlled by organelle genes exhibit maternal inheritance.The classic phenotype which exhibits maternal effects is coiling direction of snail shell.The phenotype that is seen in the offspring is controlled by the genotype of the mother.
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Mutations in ______ (or sex cells) would have no adverse health effect on an individual; however, the mutations could be passed on to offspring.
Mutations in gamete (or sex cells) would have no adverse health effect on an individual; however, the mutations could be passed on to offspring.
What is Mutation?A mutation is an alteration in the nucleic acid sequence of the genome of an organism, virus, or extrachromosomal DNA at a particular gene locus. It creates a permanent change in gene's DNA sequence. Genetic variations are essential for humans to evolve, which is the process of change over generations. Mutations is result of errors in DNA replication during cell division, exposure to mutagens or a viral infection.
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Animals are able to conductphotosynthesis:____.
A. not cellular respiration.
B. net o 2 consumers and co 2producers.
C. net o 2 and co 2producers.
D. net o 2 producers and co 2consumers.
E. net o 2 and co 2consumers.
Animals are :
B. net o 2 consumers and co 2producers.
All living organisms produce energy through cellular respiration, which is found in both plants and animals. Food is broken down and absorbed by the cells as glucose molecules when it is consumed and digested by an animal. They simultaneously take in oxygen, which enters the cells through the bloodstream, lungs, and other organs. The components and environment are ready for cellular respiration to begin once glucose and oxygen enter the cytoplasm of the cells.
The bodily processes that are powered by ATP include breathing, blood circulation, digestion, reaction to stimuli, muscle movement, and cell division, repair, and growth (matter). Energy is used in everything an animal does.
Animal Cellular Respiration (Human Example):
1) Digest a piece of pie and begin.
2) Pie is broken down into carbohydrate molecules during digestion.
3) Glucose molecules are created when carbohydrate molecules disintegrate.
4) In the mitochondria of the cells, glucose molecules are transformed into ATP along with oxygen from breathing (energy).
Cellular respiration is a multi-stage process that releases carbon dioxide and water while converting glucose and oxygen into ATP, the cellular form of energy. The equation:
C6H12O6 (1 glucose molecule) + 6 O2 ---> 6 CO2 + 6 H2O + 36 ATP (Energy)
carbohydrate + oxygen ---> carbon dioxide + water + ATP (Energy)
In animals, 1 molecule of glucose and 6 molecules of oxygen are converted into approximately 36 molecules of ATP, 6 molecules of water, and 6 molecules of carbon dioxide during cellular respiration.
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The enzyme that catalyzes the addition of a phosphate to adenosine diphosphate is?
Answer: phosphotransferase or kinases
Explanation:
The enzyme that catalyzes the addition of a phosphate to adenosine diphosphate is Pyruvate kinase.
What is Pyruvate kinase?Pyruvate kinase is an enzyme that is involved in the final step of glycolysis.
It catalyzes the transfer of a phosphate group from phosphoenolpyruvate (PEP) to adenosine diphosphate (ADP), resulting in one pyruvate molecule and one ATP molecule.
The ATP synthase is a mitochondrial enzyme that catalyzes the synthesis of ATP from ADP and phosphate.
This is driven by a flux of protons across a gradient generated by electron transfer from the proton's chemically positive to negative side.
Catalysis is a term that describes a process in which the presence of a substance (the catalyst) that is not consumed during the reaction influences the rate and/or outcome of the reaction.
Thus, pyruvate kinase is the enzyme responsible for the given reaction.
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Which technique of studying the brain involves injecting the patient with radioactive glucose?
PositivePositive emission tomography (PET) scan technique of studying the brain involves injecting the patient with radioactive glucose.
What is a PET technique?Positron emission tomography (PET) is a type of nuclear medicine procedure that measures metabolic activity of the cells of body tissues. PET is actually a combination of nuclear medicine and biochemical analysis.
A PET technique can be used to find the malignant tumor cells or diagnose condition like epilepsy.
A small amount of radioactive glucose is injected into the veins.
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What is an example of a closed system?
1.An estuary where fresh and ocean water mix
2.A living single-celled organism such as a phytoplankton
3.A river that flows into the ocean
4.Water being heated in a pot with a lid
The example of closed system is water being heated in a pot with a lid. The correct option is 4.
What is a closed system?A closed system is a innate physical system that does not aid the transfer of matter into or out of the system, though energy transfer is permitted in contexts including physics, chemistry, and engineering.
A closed system on the earth is a heating water container with a lid. The only energy transfer occurs with the environment, not with the water.
Other examples encompass a simple water bottle or a closed frying pan, among others.
Thus, the correct option is 4.
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Answer:
The answer is D - Water being heated in a pot with a lid.
Explanation:
Closed systems are similar to open systems in a way; energy can enter and leave freely, however, unlike in open systems, matter cannot enter or leave a closed system. The Earth is a good example of this. The outer edge of the Earth's atmosphere acts as a boundary between the system, Earth, and the surroundings, or space. Energy is transferred between Earth and its surroundings, think solar, but matter does not enter or leave, unless you count the rare exceptions in which a meteor crashes into the earth or when a space shuttle leaves the Earth.
The process of engulfing particles (such as bacteria) by surrounding the particle and drawing it into the cell is referred to as?
The process of engulfing particles (such as bacteria) by surrounding the particle and drawing it into the cell is referred to as phagocytosis.
In the field of immunology, phagocytosis can be described as a process of endocytosis where foreign particles, such as bacteria, are engulfed. Phagocytosis is a part of the immune response that is generated by the body.
In order for a cell to engulf a particle, the cell membrane surrounds the foreign particles, various enzymes are then secreted onto the particle, and then it is engulfed. The process of phagocytosis helps in removing infectious agents and dead cells from the body.
Cells such as neutrophils and macrophages are referred to as professional phagocytes as they actively carry out the process of phagocytosis.
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A field technique for evaluating various plants growth ability in a standardized environment would be?
A field technique for evaluating various plants growth ability in a standardized environment would be evaluation of the root-to-shoot ratio.
Plant growth is the phenomenon that can be measured through various parameters. It can be done by observing the length of the plants and its leaves, by the calculation of biomass, wet weight, dry weight, etc. When the plants increase in volume and biomass, and form new cells and tissues, they are said to be growing,
Root-to-shoot ratio is the measure of the functional amount of root tissues and the functional amount of the shoot tissues. For a plant to be considered as growing, it must have high amount of root ratio than the shoot. This is because then the plant can extract more water and nutrients from the soil and therefore grow properly.
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