Is the electron transport chain exergonic or endergonic

What is an animal that lives by preying on other animals

Which of the following best describes the purpose of technology?

Ascientist separates a population of mice into two groups. what would most likely increase the rate of speciation in this population. a. teach the two groups different tricks b. allow the two groups to breed with each other c. put the two groups in different environment d. have the two groups live in identical ecosystems