What is a gene and where are they located?

Which of the following proteins is vital to the process of recombination? a. RecA b. CroA c. HemA d. Gyrase e. Topoisomerase

Common rosefinches arrived in Hawaii roughly 6 to 7 million years ago and have since evolved into at least 56 new species of honeycreepers. How do scientists think that they got to Hawaii? A.

What happens during the light-independent reactions?

Chlorine in the stratosphere is believed to come primarily from cfcs rather than from natural sources such as volcanoes because:

Which statement best describes a keystone species A) it has little genetic variation B) it has an extremely high population C) it remains unaffected by all environmental changes D) it has a strong influence on the ecosystem E) it's the first species

Which statement best describes the relationship between activation energy and rate of reaction? O Increasing the activation energy can increase the rate of a reaction. O Reducing the activation energy can increase the rate of a reaction.

Definition: this is a haploid cell with half the reproductive information from the parent.

Does a cell use energy when molecules diffuse in or out of the cell? Why?

Below is a list of possible challenges. Check all errors that you mentioned in your answer. Traits other than beak type might affect natural selection. It could take many generations to observe adaptions to a population.

A farmer dug a well but did not find any water Which reasons most likely explain why the farmer did not find water? Check all that apply.