Answer:
Genetic variability. (Ans B)
Explanation:
Sexual reproduction is defined as the development of the new gamete, and it involves the characters of both parents, and showing the new characters from the fusion of male, and female gametes. Some characteristic of sexual reproduction are:
1) It is biparental in nature.
2) Gametes are always synthesized.
3) Fertilization occurs.
4) Meiosis and mitosis both involves.
5) New gamete genetically different from parents.
6) Multiplication is not so rapid.
The correct option is D.
For economically more developed countries, the age structure diagram is usually very evenly distributed. The economically less developed countries are the ones who usually have age structure diagram which resemble a pyramid. MDC are usually highly industrialized and economically rich.<span />
An emerging virus might suddenly appear in a human population if it is airborne, meaning many people will get it at the same time. This causes the virus to spread, initially making a population be affected.
The esophagus has a simple but significant functions to animals who has it. These functions can be a) to swallow food and serve as a passageway to the stomach and b) may serve to release the eaten food that might have some harmful compositions or chemicals -the vomit response.
