The tendency of water molecules to cling to another substance is called adhesion.
Imaging filling a bottle with water. When the bottle is filled to the very top, you slowly add a few more drops. You will notice that the water at the top of the bottle forms a dome-like structure before it spills out. This structure is due to the cohesive and adhesive properties of water. Cohesion is the ability of water molecules to stick to one another, and adhesion is the ability of water molecules to cling to other substances.
Water is more likely to cling to other polar substances, that is substances that bear a positive or negative charge. This is because as a polar substance, water molecules have a partial positive charge and a partial negative charge.
Adhesion plays an important role in many biological processes like the movement of water from the roots to the top of trees.
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In _____linked glycoproteins, the sugar can be attached to the protein by a bond to lysine
In N-linked glycoproteins, the sugar can be attached to the protein by a bond to lysine.
N-linked protein glycosylation of proteins occurs in all three domains of life. The pathway at the periplasmic membrane of prokaryotes and the process at the ER membrane are considered to be homologous . The high conservation of the process across all domains of life makes it possible to identify the underlying principles of the pathway and to develop general concepts of N-linked protein glycosylation.
The assembly of an oligosaccharide on an isoprenoid lipid (bactoprenol in the bacterial systems and dolichol in archaea and eukaryotes) from nucleotide activated monosaccharides on the cytoplasmic side of the membrane by a set of specific glycosyltransferases and the subsequent translocation of the lipid-linked oligosaccharide is a unifying scheme in all systems.
In eukaryotes, the oligosaccharide is further extended by lumen-oriented glycosyltransferases, but these enzymes use dolichylphosphate-bound monosaccharides as substrates. The acceptors of the oligosaccharide are selected asparagine residues of polypeptide chains that have entered the periplasm or the lumen of the ER, respectively. Oligosaccharyltransferase, the central enzyme of the N-glycosylation pathway, catalyses the formation of an N-glycosidic linkage of the oligosaccharide to the side-chain amide of asparagine residues that are specified by the consensus sequence N-X-S/T.
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The cerebral cortex has a wrinkled appearance. the _____ lobe lies between the occipital lobe and the central_____.
The cerebral cortex appears to be wrinkly. Between the occipital lobe and the central sulcus is where the parietal lobe is located.
Where is the parietal lobe and what does it do?
One of the larger brain lobes, the parietal lobe is generally situated in the upper rear region of the skull. It interprets sensory data from the environment, primarily pertaining to touch, taste, and temperature. Damage to the parietal lobe may cause sensory impairment.
Where is the central sulcus ?
On the lateral and medial surfaces of the cerebral hemispheres, the central sulcus (also known as the Rolando's sulcus) divides the frontal and parietal lobes.
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Imagine that, of three species, it is known that species 1 and 3 were separated 10 million years ago, based on geologic measurements. Genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. If there are 10 substitutions separating species 1 and 2, approximately how long ago did these species diverge?.
(C) 1 million years ago is the approximate time that the species diverge. This is because Genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. If there are 10 substitutions separating species 1 and 2.
Divergence in evolutionary biology refers to an evolutionary process in which a population of an inbreeding species splits into two or more descendant species that have progressively diverged in their morphologies and structural characteristics.
The difference between species 1 and 3 is 100 substitutions, and humans split off 10 million years ago. As a result, there will be 10 substitutions in a million years. As a result, 1 million years ago, species 1 and 2, which are divided by 10 substitution, diverged.
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Question correction:
Imagine that, of three species, it is known that species 1 and 3 were separated 10 million years ago, based on geologic measurements. Genetic analysis at a neutral locus indicates that these species differ by 100 substitutions. If there are 10 substitutions separating species 1 and 2, approximately how long ago did these species diverge?
A. 0.1 million years ago
B. 10 million years ago
C. 1 million years ago
D. 100 million years ago
_____ tissue covers external and internal surfaces.
a. nervous
b. connective
c. epithelial
d. muscle
Epithelial tissue covers external and internal surfaces.
In the field of science, epithelial tissue can be described as the tissues which line the internal surfaces of organs and cover the external surfaces in the body of an organism. Hence, the correct option is c. epithelial tissue.
The epithelial tissues of the body perform various functions such as protecting the other body tissues. There are certain epithelial tissues present in the glands which aid in the secretion of various enzymes and hormones. They also aid in the absorption of materials in the liver and lung cells. They help in the process of excretion by producing sweat. They also help the kidneys in filtering blood.
Option a is not correct because nervous tissues are in the interior of the body.
Option b is not correct because connective tissue covers the internal organs but it is not present in external surfaces.
Option d is not correct because muscle tissues are present in the interior of the body, not the exterior.
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How does the chemical disequilibrium of ions across the membrane create an electrical disequilibrium
The inside of cells is slightly negative relative to the extracellular fluid. This ionic imbalance causes the chemical disequilibrium of ions across the membrane create an electrical disequilibrium.
What is Chemical disequilibrium?Chemical disequilibrium is when a solute is more concentrated in one of the two compartments of body than the other. Examples of solutes that exist in chemical disequilibrium state are Sodium, Potassium and Calcium.
What is Electrical disequilibrium?The ionic imbalance or uneven distribution of ions between the ICF and ECF is called Electrical disequilibrium. ECF is more positive, ICF is more negative.
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2. (a) Identify the range diagram above in which most of the species population is found. Explain why this is the case:
________________________________________________
(b). Describe the greatest constraints on an organism's growth and reproduction within this range: ________________________________________
Which brain structure receives information from all the senses except smell? hippocampus amygdala pons thalamus
Brain structure that receives information from all the senses except smell is known as the thalamus.
Thalamus is a central, egg-shaped region in the human brain. It serves as a relay station including all incoming listening, taste, vision, and sensation (but not smell) sensory inputs from the body to the brain.
A specialized brain structure located deep within the temporal lobe is the hippocampus. It plays a significant part in memory and learning. It is a flexible and delicate structure that is responsive to many stimuli. According to studies, it is also impacted by a number of neurological and mental problems.
It is generally accepted that the amygdala serves as the hub of a brain system for processing scary and frightful inputs. Pons manages tasks and unconscious functions like breathing and the sleep-wake cycle.
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Do you know how to do this?
all you have to do is read the question then try to do it because some people don't read the question. They question when they are confused all the time now read the question and it will make more easy.
That we may have to look for several causes contributing simultaneously to a case of biodiversity loss is evident in the study of?
A case of biodiversity loss is evident in the study of colony collapse disorder in honey bees.
Biodiversity- The diversity of animals, plants, fungi, and even microorganisms like the bacteria that make up our ecological landscape are all included in what is known as biodiversity. These many species and critters collaborate in complicated web-like ecosystems to keep things in balance and support life.
Colony- A collection of creatures belonging to the same species that coexist and communicate often. A colony is distinct from an aggregation, a group whose members do not communicate with one another. For example, An ant colony, for instance, is made up of ants that dwell near to one another for mutual reasons.
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What would be the benefit of a controlled lab experiment versus an observational field study? what are the benefits of using a model?
The fundamental benefit of conducting experiments as opposed to observational research is that a well-conducted study may provide solid proof that the intervention actually produced the desired outcome. Two or more groups may be compared in an experiment.
What distinguishes an observational research from a controlled experiment?In an observational research, participants are measured or surveyed without any attempt to influence them. In a controlled experiment, participants or objects are divided into groups, and one group is given a treatment while the other is not.
Strength: Due to the natural environment of a field experiment, behaviour is more likely to represent actual life, giving it better ecological validity than a lab experiment.
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What are the differences in the way lipids are found or function in plants and animals?
Lipids are stored as triacylglycerols and waxes on both animals and plants
What is lipids ?Lipid can be described as an organic compound that is not soluble in water. lipid is an essential component that is needed for proper functionality in both plants and animals.
In plants, lipids help provide lots of energy that is needed for different metabolic processes that goes on in the plant. Lipids also help fight off pathogens in plants
In animals, lipids also serve as an energy source and they help in the regulation of the different hormones present in the body. Lipid also help signal important molecules when they are required in the body and they also help in the proper digestion of food molecules.
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How did settlement house workers address the prominent role class differences played in the american economic system?
The settlement house workers address the prominent role class differences played in the American economic system because "they initiated and provided the clients with career counselling which helped them to move into the middle and upper classes".
The employees of the settlement houses created neighborhood centers and provided services like daycare, adult education, counselling, intercultural exchanges, as well as citizenship training.
For fighting against racial discrimination they used legal system. They focused partially on local level by focusing on political efforts. They lobbied congress to address the distribution of US resources at the national level.
such that this is how house workers addressed the prominent role class differences played in the American economic system.
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____is the small but influential brain structure that controls the pituitary gland and regulates hunger, thirst, sexual behavior, body temperature, and a wide variety of emotional behaviors.
Answer:
The hypothalamus is a brain structure that contains a number of small areas that perform a variety of functions, including the regulation of hunger and sexual behaviour, as well as linking the nervous system to the endocrine system via the pituitary gland.
Which membrane transport mechanism requires the greatest amount of energy? active transport facilitated diffusion simple diffusion passive transport
Active transport is the membrane transport mechanism that requires the greatest amount of energy.
Active transport is the movement of molecules against the concentration gradient across a cell membrane from a location of lower concentration to a region of greater concentration. Cellular energy is needed for active transport in order to achieve this movement. Because it enables the cell to move chemicals against the concentration gradient, active transport is significant. Even though a substance's concentration is higher inside a cell than it is outside, cells can still take it in.
Exocytosis and endocytosis, two membrane transport processes that require energy expenditure, are both included in active transport. Simple diffusion, passive transport, and facilitated diffusion are all metabolically inert processes.
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Excess tyramine caused by monoamine oxidase inhibitors (maois) can result in what?
The answer to the above question is Hypertensive crisis.
What is Hypertensive crisis?A hypertensive crisis is characterized by severely increased blood pressure (equivalent to or more than a systolic pressure of 160 or a diastolic pressure of 110; also known as malignant or accelerated hypertension), which carries a high risk of consequences. Although those with blood pressure in this range may not experience any symptoms, they are more likely than the general population to report headaches and lightheadedness. A hypertensive crisis may also be accompanied by other symptoms including dyspnea from heart failure, deteriorating vision from retinopathy, or a general feeling of malaise from kidney failure. Blood pressure is known to be raised in most patients experiencing a hypertensive crisis, but there may have been additional triggers that caused a fast increase.
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Why do scientists complete their experiments more than once?
Answer:Scientists repeat experiments several times because it results in more accurate data that can be trusted over just doing an experiment once.
Explanation:
Which cell structure is an important component in modern genetic engineering techniques?
a) ribosomes capsules
b) plasmids inclusions
c) mesosomes
the sense of equilibrium maintains the stability of the head and body when they are motionless. the sense of equilibrium balances the head and the body when they are suddenly moved or rotated.
The sense of static equilibrium maintains the stability of the head and body when they are motionless. The sense of dynamic equilibrium balances the head and the body when they are suddenly moved or rotated.
Static equilibrium occurs when a body is at rest. There are two forces acting upon the body during static equilibrium, but they occur in opposite direction, and as a result the body remains static. For example, when an organism stands still in its position, it is acted upon by the force of gravity downwards and normal force upwards and thus remains in static equilibrium.
Dynamic equilibrium occurs when a process is going on. It detects the angular acceleration of the movement of head. In humans, the semicircular canals help in maintaining the dynamic equilibrium.
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Darwin called the units of inheritance that pass traits from parents to offspring.
Darwin called the units of inheritance that pass traits from parents to offspring gemmules.
Charles Darwin proposed the pangenesis theory to describe the units of inheritance between parents and offspring. The minute particles of inheritance that are derived from parent cells were referred to as gemmules. His theory suggested that these gemmules can be modified in any part of the body and are transferred into the reproductive organs of the parents. The gemmules then are transferred to the offspring.
As of now, Charles Darwin's theory is replaced by the chromosomal theory of inheritance, and the concept of gemmules is replaced by that of genes. A theory of inheritance of acquired characteristics (IAC) was further considered by Darwin from which he explained the concept of gemmules.
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Ollowing a disturbance, the climate of an area will always lead to repopulation by the same animal, plant, fungus, and bacterial species, a group collectively referred to as a(n) __________ community.
The climate of an area will always lead to repopulation by the same animal, plant, fungus, and bacterial species, a group collectively referred as Climax Community.
What is climax community?
A community of plants, animals, and fungi that have attained steady state through the process of ecological succession in the growth of the vegetation in an area over time is referred to in scientific ecology as a climax community or climatic climax community.
Because the climax community is made up of species that are best adapted to the region's typical conditions, it was believed that this equilibrium would emerge.
The climax community's species composition doesn't change since all of the existing species are able to reproduce, whereas invasive species are unable to establish a presence. The climax stage is not entirely permanent since ecological processes, evolutionary processes, and climate changes all alter the environment over extremely long stretches of time.
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The _____ nervous system conserves energy, while the sympathetic nervous system consumes energy.
The nervous system conserves energy, while the sympathetic nervous system consumes energy.
What is the nervous system?The nervous system is an organ system that coordinates the activities of muscles, monitors organs, constructs and processes data received from the senses and initiates actions.
The nervous system can either be the following;
SympatheticParasympatheticThe sympathetic nervous system is a part of the autonomic nervous system that raises blood pressure and heart rate, constricts blood vessels, and dilates the pupils when under stress.
On the other hand, the parasympathetic nervous system is one of the divisions of the autonomic nervous system, based between the brain and the spinal cord, that slows the heart and relaxes muscles.
This suggests that the parasympathetic nervous system conserves energy because it slows the heart while the sympathetic nervous system consumes energy.
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The side of a limb that lies parallel to the median plane but is farthest from that plane is the limbs ___ surface.
The side of a limb that lies parallel to the median plane but is farthest from that plane is the limbs lateral surface.
What is a lateral radiographic view?A second perspective that is typically acquired during a diagnostic assessment is the lateral view. Depending on where the imaging tube and detector are positioned, a lateromedial view (LM) or a mediolateral view (ML) can be achieved.
It describes areas of the body that are further from the centre in terms of medicine. The hand, for instance, is far from the shoulder. Distal to the wrist is the thumb. The opposite of proximal is distal. Distal denotes separation, whereas proximal denotes closeness. The midline defines the right and left sides of body components. Consider the right arm and leg. Body components that are contralateral to the midline.
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Which enzyme is responsible for adding complementary dna bases to an exposed dna strand?
a) dna helicase
b) dna polymerase
c) dna ligase
d) dna peptidase
The correct option is (b) DNA polymerase.
DNA polymerase is responsible for adding complementary dna bases to an exposed dna strand.
What is the function of DNA plymerase?The family of enzymes that catalyze the synthesis of DNA molecules from nucleoside triphosphates, the basic building blocks of DNA, includes DNA polymerase. These enzymes, which are required for DNA replication, typically function in groups to divide an initial DNA duplex into two identical copies. DNA polymerase "reads" the preexisting DNA strands throughout this process to produce two new strands that are identical to the preexisting ones. One nucleotide at a time, DNA polymerase adds nucleotides to the three prime (3')-end of a DNA strand. DNA polymerases are necessary to replicate the cell's DNA during cell division in order for a copy of the original DNA molecule to be transferred to each daughter cell.Learn more about the Replication with the help of the given link:
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Which side of the cerebellum is concerned with movements of the right hand?
The right side of the cerebellum is concerned with movements of the right hand.
Cerebellum is located at the backside of the brain. Almost 50% os the nerve cells are present in the cerebellum area of the brain. The functions that the cerebellum regulates are: motor skills. movement, coordination, posture, equilibrium and balance.
The hand is the appendage of the body that emerges from the shoulder and consists of the forearm, the upper arm, the palm and the fingers. Although, the palm and the fingers are specifically referred as hands. The upper arm and the forearm together from the arm region.
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What is the purpose of a rain gauge? a. to measure the amount of rainfall b. to predict how much rain is going to fall c. to predict whether or not it is going to rain d. to measure the temperature of the rain please select the best answer from the choices provided a b c d
The correct option is (a) To measure the amount of rainfall
A rain gauge is a meteorological device used to gauge how much rain falls over a specific area in a specified amount of time.
What is rain gauge and what is its function? The oldest known meteorological instruments are rain gauges, which are considered to have been in use in India more than 2,000 years ago. Simply put, a rain gauge is a cylinder that collects rain. An inch of rain has fallen if there is an inch of accumulation in the cylinder. It's that easy. The majority of common rain gauges feature a large funnel leading into the cylinder and are calibrated so that when rain collects within, one inch of rain equals one-tenth of an inch. The cross-sectional area of the funnel is ten times that of the tube. With this device, rainfall as little as.01 inches can be measured. A trace is defined as something that is less than.01 inches.Learn more about the Rain guage with the help of the given link:
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Answer:
a. to measure the amount of rainfall
Explanation:
Identify the reasons why meiosis leads to significant genetic variation while mitosis does not. select the two correct reasons.
Please be rightly informed that meiosis leads to significant genetic variation while mitosis does not simply because
Meiosis produce chromosomes and crossing over provide a large amount of genetic variation.Meiosis produces a unique combination of genes.Option b and c are the two correct answer
This is possible simply because there is an independent assortment of the genetic materials which contains a unique and different combination of genes
What is cell division?Living organisms be it plants or animals need to produce new cells for replacement, growth and development and other life processes, the process by which all these occur is known as cell division.
However, the functions and importance of cell division cannot be overemphasized as it helps greatly in
Formation of gamatesReproductionGrowth formation.So therefore, meiosis leads to significant genetic variation while mitosis does not simply because
Meiosis produce chromosomes and crossing over provide a large amount of genetic variation.Meiosis produces a unique combination of genes.Complete question:
Identify the reasons why meiosis leads to significant genetic variation while mitosis does not. select the two correct reasons.
a. Meiosis produces the same combination of genes.
b. Meiosis produce chromosomes and crossing over provide a large amount of genetic variation.
c.Meiosis produces a unique combination of genes.
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A commensal bacterium?
Answer
Commensal bacteria stimulate the immune system of the host to enhance defense mechanisms that block pathogen entrance and colonization. Moreover, by creating antimicrobial properties and signals & fighting with other bacteria for food and attachment sites, such bacteria might effectively limit the spread of respiratory infections. In healthy animals, the majority of commensal bacteria live inside the intestine's lumen, although some are also found in immediate contact with the intestinal epithelium. New studies have shown that commensal bacteria may live in stable stomach lymphoid tissues. But every once in a while, especially when they travel to other areas and leave their natural habitat, these commensal bacteria might cause illness. In both old and very and also in young persons, it can spread throughout the rest of the body, causing pneumonia, infection, and meningitis.
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Which structure do all eukaryotic cells have that prokaryotic cells do not have?
nucleus
cell wall
chloroplast
ribosome
Answer: nucleus
Explanation: There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.
Answer:
nucleus
Explanation:
There are several differences between the two, but the biggest distinction between them is that eukaryotic cells have a distinct nucleus containing the cell's genetic material, while prokaryotic cells don't have a nucleus and have free-floating genetic material instead.
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A neuron with an excitatory center-inhibitory surround receptive field will respond most when we stimulate _____.
A neuron with an excitatory center-inhibitory surround receptive field will respond most when we stimulate only the center
What does a neuron's receptive field look like?The area of the sensory world where a neuron's receptive field is located is where an appropriate stimulation can either raise (excitatory) or reduce (inhibitory) a neuron's activity. The region of the retina known as a retinal ganglion cell's receptive field is where light stimulus alters the cell's response or firing rate.
a reduction in receptor sensitivity even while a stimulus is present.
Additionally called hypercomplex cells. cell of the visual cortex with a strong inhibitory field at one end of its field that reacts best to stimuli of a very specific type anywhere in a broad receptive field. The locations of these cells are in V1 and V2. Their receptive field is the biggest.
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Slowing signals between neurons is a function of __________. a. excitatory receptors b. excitatory neurotransmitters c. inhibitory receptors d. inhibitory neurotransmitters please select the best answer from the choices provided a b c d
Answer:
b excitatory neurotransmitter
Answer: D
Explanation:
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