Answer:
The correct option is <u><em>A. they evolved from land mammals.</em></u>
Explanation:
The process of evolution explains how closely one organism is to another based on their common ancestors. Scientists believe that those organisms which show many similarities in their structures or functions might have evolved from a common ancestor in the past.
As in the above-mentioned question, scientists have observed that cetaceans lack gills and breath air, this is a property of land mammals. The cetaceans have fin bones which are similar to the limb bones. As limb bones are present in land mammals, hence they cetaceans and land mammals might have common ancestors in the past.
Water-soluble vitamin excesses are swiftly eliminated in urine and infrequently build up to hazardous amounts.
What is water-soluble vitamins ?
The B vitamins — folate, thiamine, riboflavin, niacin, pantothenic acid, biotin, vitamin B6, and vitamin B12 — and vitamin C are the nine water-soluble vitamins. A clinical condition caused by a deficiency in one or more of these water-soluble vitamins can have serious morbidity and death effects.
The fat-soluble vitamins are used by your body as needed, and any extra is stored in your tissues and organs. The risk of vitamin poisoning increases when you take too much fat-soluble vitamins on a regular basis, making them more dangerous than water-soluble vitamins.
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Answer: A line graph would be the best graph to show trends in data
Explanation:
Answer:
In the United States there are existing state laws to protect people from genetic discrimination in areas such as insurance companies and workplaces.
Explanation:
Genetic discrimination is based on the possibility that an individual manifests a disability or inherited disease due to a genetic alteration.
In many cases, both workplaces and insurance companies require genetic testing before granting a job or an insurance policy.
A federal law - Genetic Information Nondiscrimination Act or GINA - protects people against this requirement of their future employers or any insurance company and guarantees, with certain exceptions, the possibility of obtaining a job or medical insurance.
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