Answer:
The correct answer is option C.
Explanation:
Sexual selection is a type of special natural selection. It affects the ability to get or breed with a mate and it could be by any means. It changes phenotypically in the different sexes of the same species for example peacock.
It is might be sometime harmful to the species too. Females produce eggs or a number of pregnancy and it affects the reproductive success where is in males it is determined by the mating numbers.
Thus, the correct answer is option C.
B. the more air pockets and the larger the crystal. It cools underground, with less oxygen
Answer: 3. A food chain follows one path of energy and materials between species. A food web is more complex and is a whole system of connected food chains. In a food web, organisms are placed into different trophic levels.
Explanation: I was unable to answer the first one, but I think I got the 3rd one down. Hope this helps! :)
Those are called minerals