Genetic drift refers to changes in the gene pool of a population that result
from
O
A. injuries caused by male competition
O
B. changes in the number of polygenic traits
O
c. a type of artificial selection
D. random changes in allele frequencies

How water is moving through the ecosystem ?

Consider the following reaction: 2h2 + o2 —> 2h2o a) what are the reactants in this reaction? b) what are the products in this reaction? c) how many molecules of oxygen are used in this reaction?

What contributes to the high level of biodiversity found in wetlands? a. the large amount of available organic matter to organisms that are food for larger organisms b. the amount of available water for organism use c. the high nutrient availability d. all of the above select the best answer from the choices provided a b c d