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Ad libitum [116K]
3 years ago
13

Which scenario would be most appropriate to study using a natural experiment? * the effects of an herbicide on human health the

influence of sleep on exam performance the effects of an earthquake on blood pressure
Biology
1 answer:
maksim [4K]3 years ago
4 0

Answer:

C. the effects of an earthquake on blood pressure

Explanation:

Natural experiments are observational studies in which participants are randomly assigned to groups that allow the researcher to draw causal relationships between an event and a factor. These experiments are used in studies where it would be unethical and unacceptable to subject human participants to such conditions. It is most times applied in epidemiological studies.

Since the researcher cannot control an earthquake which is a natural occurrence, this can be rightly described as a natural experiment. Controls are not used in this type of experiment.

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When glycolysis produces pyruvic acid faster than it can be used by the mitochondria, the pyruvic acid is converted to _________
nikdorinn [45]

Answer:

<h2>lactic acid</h2>

Explanation:

Glycolysis is the process of the breakdown of glucose by enzymes, and the energy production in the cell. It occurs in all cell in all organism. Through glycolysis, there is the production of ATP and NADH, which are used in energy requirement. Glycolysis occurs in cytosol, with the help of various enzymes, like hexokinase, phosphofructokinase and PEP etc. When glycolysis produces pyruvic acid faster than it can be used by the mitochondria, the pyruvic acid is converted to lactic acid.

6 0
4 years ago
1.) What gives water all its properties? 2.) What type of bond joins H2O to another H2O and forms cohesion? 3.) What property of
Yuri [45]

Answer:

1. polarity

2. hydrogen bonding

3. High heat capacity

4. Adhesion

5. polarity

6. surface tension

7. high heat vaporization

8. hydrogen bonds form a rigid and stable network

9. Water is a polar substance and fat is a nonpolar substance.

10. Cohesion

Explanation:

Water is a polar molecule that is held together by hydrogen bonds to form strong cohesive forces. This accounts for the surface tension in water. Surface tension is the force acting on water that it makes to behave like a stretched elastic skin.

The polarity of water accounts for the fact that it is found in several parts of the body where it largely plays the role of a polar solvent.

High heat capacity of water enables it to function well in the area of thermoregulation in the body. High heat vaporization accounts for the fact that water helps maintain extreme temperature changes in an area.

When in solid state, the hydrogen bonded network in water becomes rigid and forms a very stable network of water molecules. Being polar, water does  not interact with fat because like dissolves like.

In plants, the attachment of water to plant roots is known as adhesion and is necessary for the capillary movement of nutrients to plants via the root.

5 0
3 years ago
Genotype<br><br> A: The physical characteristics <br> B: The set of alleles
leonid [27]

Answer:

The answer is B. the set of alleles.

Explanation:

5 0
3 years ago
Read 2 more answers
Which labels should replace the numbers to correctly complete the table
r-ruslan [8.4K]

Explanation:

Where is the table, there is no table displayed??

4 0
3 years ago
Streptomyces griseus produces the antibiotic Streptomycin, which inhibits protein synthesis by binding to ribosomes and preventi
VLD [36.1K]

Answer:

See the answer below.

Explanation:

Antibiotic-producing bacteria are generally known to have a mechanism that enables them to be resistant to their own antibiotics. The mechanism that enables them to be resistant to their own antibiotic depends largely on the mode of action of the antibiotic substance.  

Some of the popular mechanisms used by bacteria to counter their own antibiotic substance include a mutation in the target gene, production of enzymes that inactivate the antibiotic compounds, or efflux of the compounds.

<u>In the case of </u><u><em>Streptomyces griseus</em></u><u>, the inactivity of streptomycin has been linked with the production of a phosphatase inhibitor that prevents streptomycin from getting access to the target site. Hence, the organism is not harmed by its own antibiotic.</u>

7 0
3 years ago
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