An example of disruptive natural selection is the presence of more light-colored moths in rural areas and to more dark-colored moths in industrial areas but FEWER medium-colored moths in either location. Thus, the correct option is A.
<h3>What do you mean by Natural selection?</h3>
Natural selection may be defined as the approach through which populations of living organisms acclimate and change.
Disruptive natural selection occurs when environmental conditions changes in two different ways or in two different locations.
Therefore, the correct option for this question is A.
To learn more about Natural selection, refer to the link:
brainly.com/question/14385908
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Yes, because vaccines help prevent diseases whereas antibiotics help cure them. (it’s better to prevent)
Answer:
Explanation:
Echinoderms are marine organisms which means they live in the ocean. They are found in all marine waters on Earth although there are few species living in the Arctic. Many echinoderms are visible on the seashore such as sand dollars, globular spiny sea urchins and asteroids.
Answer:
Inducible
Explanation:
When a gene is expressed only under certain conditions such as the presence of an inducer in the environment to inactivate the repressor, the gene expression is said to be inducible. Here, the presence of substance Y is required as it serves as an inducer by inactivating the repressor protein. When the repressor protein is inactivated, RNA polymerase is able to express the gene. This is an example of inducible gene expression. For example, the presence of lactose is required for the expression of genes of the lac operon.
The correct answer is Galen.
Galen considered anatomy as the foundation of medical knowledge, and he recurrently dichotomized and tested on the lower animals like pigs, sheep, and goats. Galen's supported dissection as the method to better the skills of surgery and research works.
In his work, he illustrated seven pairs of cranial nerves, observed the structural distinctions between the veins and arteries, and illustrated the valves of the heart.
