What was most likely the reason for this decrease in the perch population? O A. The chemical composition of the water was changed by the power plant.
O B. The warmer water did not carry enough oxygen for the perch.
O C. The warmer water did not carry enough carbon dioxide for the perch.
O D.
The perch's main food source flourished in the heated water.

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form

Ts assignment - snow day assignment genetic variation and natural selection natural selection relies on genetic variation. in any population of beetles, there are alleles for brown or green color. what happens to the genotype and the phenotype of the beetle population when there are distinct advantages and disadvantages due to color? order the steps that take place during natural selection in this beetle population.