Which does the electron transport chain do during cellular respiration?
A. Provides energy for pumping of hydrogen ions
B. Makes more energy carriers for respiration
C. Breaks down glucose into pyruvate molecules
D. Uses carbon dioxide and water to make glucose

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Producing disposable grocery bags consumes resources. recycling disposable bags is a solution that can recover some of the resources used to make new bags. which of the following behaviors could further refine the solution? a. disposing of bags by burning them b. reusing bags whenever possible c. using bags at once so that they do not break d. using only nonrenewable materials to make new bags subject is environmental science for apex users

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.