Answer:
c. No, because his speed is a result of diet and exercise, not a genetic trait.
Explanation:
Natural selection is the differential survival and reproductive success of some individuals of a population. This is attributed to the presence of beneficial genetic variations in them. Natural selection always targets the adaptive genetic traits. In the given example, a specific diet and exercise led to increased fitness and survival chances of Jumping Jack Flash. Diets and exercises are not genetic traits on which natural selection can be operative. Therefore, it is not an example of natural selection.
The tissue called "epithelial" is responsible for secreting digestive enzymes.
The diaphragm is the other main muscle involved in the pulmonary system and is responsible for creating the pressure changes that a case inspiration/ expiration.
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The process is likely to be triggered by the formation of the layers. Zygote is the structure that forms when a sperm fertilizes an egg, the zygote then divides many times by the process of mitosis to form an embryo. That is, it forms two cells, then four, then eight and so on, up to the eight stage the cells are identical and are called embryonic stem cell, which then develop into any specialized cells type by differentiation, that the growing embryo needs, such as the nerve cells, blood cells, among others.