Answer: C: Evolution
Explanation:
What is the ability of a cell membrane to allow materials to pass through it called?
What two or more tissues join together together for a specific function they form a/an ________________. examples include_____________________,_________________and_____________?
When two or more tissues join together for a specific function, they form an organ. Examples include the heart, liver, and lungs.
Explanation:When two or more tissues join together for a specific function, they form an organ. Examples include the heart, which is made up of cardiac muscle tissue, connective tissue, and nerve tissue; the liver, which is made up of various types of tissues including hepatocytes and blood vessels; and the lungs, which are made up of respiratory epithelium, smooth muscle, and connective tissue.
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What would be the impact on the nitrogen cycle if there were a decrease in decomposition in a given ecosystem?
A decrease in the decomposition rate in an ecosystem will impact the nitrogen cycle such that the amount of nitrogen available in the soil decreases.
The nitrogen cycleDecomposition of dead organic matters in ecosystems releases nitrogen into the soil in the form of ammonium compounds.
The more the decomposition activities in an ecosystem, the more the amount of nitrogenous compounds available in the soil.
Thus, a decreased decomposition rate in an ecosystem will reduce the amount of nitrogen available in the nitrogen cycle, specifically in the soil.
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What is life expectancy? question 4 options: 1) maximum life span that an individual of a given species could reach 2) number of individuals in a population that survive in a given year 3) number of years an individual of a certain age will probably live 4) probability that an individual will survive infancy 5) all of these are descriptions of life expectancy?
The maximum life span that an individual of a given species could reach is referred to as life expectancy. The correct option is 1.
What is most common life expectancy?Life expectancy is a measurable statistic of how long an organism is expected to live based on its birth year, current age, and other demographic factors.
The world's current life expectancy in 2016 was 72.0 years, 74.2 years for females, and 69.8 years for males, according to the World Health Organization (WHO).
Thus, the correct option is 1.
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Smells are processed in the ______, which explains why smells often generate emotion-laden memories.
Which of the following are NOT examples of data?
a.
facts
b.
figures
c.
theories
d.
measurements
Please select the best answer from the choices provided
A
B
C
D
Neurons found in the center of the spinal cord that receive information from the sensory neurons and send commands to the muscles through the motor neurons are called ________.
One advantage to locomotion in animals is that it provides the animals with an increased ability to
The number of kilocalories provided by a food that contains 30g of carbohydrate is
Which theories reflect darwin's emphasis on the adaptive value of the behavior?
Before a scientific theory is accepted and supported, it has A) been tested by only one scientist. B) been published in scientific journals. C) been tested many times by different scientists. D) been approved by the International Committee of Scientists.
Answer:
The correct answer will be option-C.
Explanation:
A scientific theory is a well-substantiated idea which explains any natural phenomenon in depth. The theory is the elaborate and explanatory form of a hypothesis which has to prove through experiments.
The theories are formed by the use of many earlier theories which explains the same natural issue like Theory of relativity by Einstein. Before the theory is accepted it must be supported by the experiments of the work of another scientist as well as earlier theories. It should be tested with other scientists working on the same issue.
Thus, Option-C is the correct answer.
The __________ effect occurs because humans have more cortical neurons that respond to horizontal and vertical orientations than slanted orientations.
Why does maltose have both alpha and beta anomers?
Maltose is a disaccharide that made of 2 glucose units. Each glucose unit can happen as alpha or beta. So, "α" or "β" is grounded on the relation between the stereochemistry of the anomeric carbon and the furthest chiral center in the ring. The α anomer is the one in which these two locations have the same configuration; they are opposite in the β anomer.
Maltose has both alpha and beta anomers because it is a reducing sugar. The OH group on the anomeric carbon of the second glucose can be in either the alpha or beta position. The alpha and beta anomers of maltose exist in equilibrium in aqueous solution.
Explanation:Maltose has both alpha and beta anomers because it is a reducing sugar. The two glucose molecules in maltose are linked in a head-to-tail fashion through an alpha-1,4-glycosidic linkage. This linkage leaves one anomeric carbon that can open to form an aldehyde group. The OH group on the anomeric carbon of the second glucose can be in either the alpha or beta position. The alpha and beta anomers of maltose exist in equilibrium in aqueous solution.
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Using data from the table above, select the best explanation for why that cell will be able to eliminate waste most efficiently?\
Water is __________ when a nucleotide is added to the end of a dna strand.
Answer;
-Produced
Water is produced when a nucleotide is added to the end of a DNA strand.
Explanation;
Nucleotide is a monomer in nucleic acids, consisting of a five-carbon sugar covalently bonded to a nitrogenous base and (1-3) phosphate groups.
-The polymerization of nucleotides is a condensation reaction. condensation reaction is the chemical reaction in which two or more molecules combine to produce a simple molecule that happens in nucleic acid synthesis. (like hydrolysis but not water product). For a covalent bond to form between the nucleotide and DNA strand, an OH from the nucleotide and an H from the strand of DNA combine to form water.
Which element is present in all amino acids, but not necessarily in fats or carbohydrates?
A. Carbon
B. Nitrogen
C. Oxygen
D. Hydrogen
A basic amino group (NH2), an acidic carboxyl group (COOH), and an organic R group (or side chain) that is specific to each amino acid make up an amino acid, an organic molecule. Therefore, option (B) nitrogen is correct.
What is amino acids ?Organic substances known as amino acids have both amino and carboxylic acid functional groups. Alpha-amino acids, which make up proteins, are by far the most significant of the hundreds of amino acids found in nature. In the genetic code, only 22 alpha amino acids are present.
Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are the necessary amino acids. Alanine, asparagine, aspartic acid, glutamic acid, and serine are the non-essential amino acids.
Carbohydrates and fats consists of carbon, hydrogen and oxygen. Therefore, Option (B) is correct. Nitrogen is present in all amino acids but not necessarily in fats or carbohydrates.
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Which is likely to be the most important contribution of genetic engineering to the practice of selective breeding
Many enzymes in both prokaryotic and eukaryotic cells are compartmentalized within organelles.
a. True
b. False
If a formation in the dna of an organism results in the replacement of an amino acid containing a polar r group with another amino acid containing a nonpolar r group how might the structure of the protein be affected? address the impact on all levels of the protein structure in your answer
A nurse is caring for a 5-year-old boy with end-stage acquired immunodeficiency syndrome (aids). the child confides that he is ready to go to heaven and see his grandpa. the nurse knows that the child's parents aren't comfortable with the idea of discontinuing treatment. what should she do?
Explain why carbon is essential to all known living things on earth?
Andesitic rock is an igneous rock with a composition in between that of basaltic and granitic igneous rock. Please select the best answer from the choices provided T F
The answer to the statement will be true
Consider the feedback loop that cools the body when it is too warm
When you are focusing an object under the microscope, explain why some parts are in focus and some parts are out of focus?
Some parts of an object may be in and out of focus under a microscope due to differences in specimen depth and because high magnification lenses require precise focusing. Objective lenses are parfocal, aiding in maintaining focus when switching magnifications, and the eyepiece further magnifies the image to create a clear view for the observer.
Explanation:When you are focusing an object under the microscope, some parts may be in focus while others are out of focus because of differences in depth within the specimen, which is being magnified by the microscope's lenses. The first lens, the objective lens, typically has magnification values from 5x to 100x and is mounted to be parfocal, meaning it keeps the specimen nearly in focus when switching between magnifications. The second lens, the eyepiece or ocular, contains several lenses and works with the objective lens to magnify the object further.
When viewing the specimen, the field of view is limited and dependent on the combination of eyepiece and objective lens used. As the objective lens magnifies the object, the working distance between the lens and the specimen decreases. High magnification lenses require fine adjustments to the focus, using the fine focus knob, to bring a very small and specific area of the specimen into focus.
Lenses focus light at an image point by bending the light waves that pass through them. The focal length of a lens is the distance over which these rays are refracted to a single point, and it can be affected by factors such as lens curvature, the refractive index of the lens material, and the wavelength of the incoming light.
When focusing a microscope, the parts of the object within the depth of field will be in focus, while others will not. Increasing magnification decreases the depth of field, making fewer parts appear clear. Using the fine focus knob helps bring different parts into view.
When you focus an object under a microscope, the parts that are in focus lie within the depth of field of the lens. The depth of field is the range of distance within which objects appear sharp and clear. As you increase magnification, the depth of field decreases, making fewer parts of the specimen appear sharply focused. This is why some parts of the object are in focus while others are out of focus. Using the fine focus knob can help achieve a more precise focus and bring different parts of the object into clear view. Imagine you are observing a leaf under a microscope. At low magnification, you might see the entire leaf surface clearly. However, when you switch to higher magnification to look at the cells, only a thin layer of cells will be in focus while cells above and below that layer appear blurry.
The S-P interval of seismic waves recorded at a seismometer is 8 minutes. Approximately how far away is the earthquake’s epicenter from the seismometer? [equation: (S-P interval) = 0.00146 (distance to epicenter)]
8 km
550 km
5,500 km
less than 1 km
Answer:
5,500
Explanation:
What is the difference between a longitudinal section and a cross section?
Answer: See Explanation
Explanation:
Cross sectional study is form a class of research methods that involve observation of all of a population, or a representative subset, at a defined time. Longitudinal study is a correlation research study that involves repeated observations of the same items over long periods of time — often many decades. It is a type of observational study.
A red-tailed hawk swoops down and captures a young rabbit feeding on dandelions growing in a park. the relationship between the hawk and the rabbit represents __________.
If you were preparing nutrient agar at home and did not have an autoclave, what could you use to sterilize the nutrient agar? if you were preparing nutrient agar at home and did not have an autoclave, what could you use to sterilize the nutrient agar? boiling for one hour hydrogen peroxide bleach pressure cooker at 121°c for 15 minutes oven at 121°c for one hour
The nurse should suspect that a client who had a recent myocardial infarction is experiencing denial when the client:
Glycogen is an energy-storage molecule in humans. A hormone that is called insulin controls the storage of glycogen in the liver. Insulin is made up of amino acids.
Which statement correctly identifies the types of macromolecules that are described?
Glycogen is a protein, and insulin is a lipid.
Glycogen is a lipid, and insulin is a protein.
Glycogen is a carbohydrate, and insulin is a lipid.
Glycogen is a carbohydrate, and insulin is a protein.
Answer:
Glycogen is a carbohydrate, and insulin is a protein.
Explanation:
Glycogen is a polysaccharide made of thousands of glucose molecules. This is also called ‘animal starch’. The glucose is stored as glycogen in animal cells and humans. Thus, it is a carbohydrate. Insulin is a hormone secreted by beta cells of islets of Langerhans. It is a polypeptide made of amino acids. Thus, it is a protein.