Answer:
Darwin proposed the theory of natural selection to explain the process of evolution. According to Darwin’s theory of natural selection, all organisms have the potential to reproduce limitlessly irrespective of the fact that each species maintain a constant density over time. However, the struggle for existence, i.e. the competition among individuals for available resources to survive and reproduce, put a check on species density (D) and maintains it at a constant level (B). Survival of fittest is unequal ability of individuals to survive and reproduce based on suitability of their inherited characters to prevailing environmental conditions (A). It imparts the reproductive advantage to certain organisms which account for major part of the gene pool of the species. Thus, natural selection favors the individual with survival and/or reproductive advantage over others under existing environmental condition (E). Thus, the correct answer is option C.
Answer:
In the result of meiosis, testes produce 4 small mature sperm while ovaries produce 1 large egg cell.
Explanation:
Meiosis produces gametes (sex cells). Sex cells are eggs in females and sperm in males.
In the female, ovaries produce four haploids (3 polar bodies and 1 immature egg) under meiotic division. Polar bodies die because of the unequal division of cytoplasm. The immature egg matures into a large ovum/egg every 28 days during the menstrual cycle that is able to fertilize.
In the male, meiosis occurs in testes that produce 4 spermatids that mature into 4 small sperms. Testes produce several hundred million sperms every day under meiosis. These sperms are able to fertilize.
Nevertheless, if we want to compare their numbers based on meiotic division, we would say that they will be in the same ratio (1:1) at the end of each meiosis cycle for males and females.
Electric Power
Because Eletric Things Dont Need Oil
Electricity Is Made Up Of WIres Which Is How We Get Our Electricity
A researcher is studying the science of attractiveness and asks volunteer test subjects to rank what trait they find most attractive in a person. What type of variable is the dependent variable in this experiment?
-Categoric
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The brain stem helps regulate the flow information between the brain and the rest of the body