How do electrons gain energy in photosystem 1?

a. They absorb photons.

b. They use energy in the form of glucose.

c. They take energy from ATP molecules.

d. They use energy from a hydrogen ion pump.

Ecology involves the study of all of the following except for the interactions between A. atoms. B. individual organisms and their environment. C. individual organisms. D. populations.

E. coli is a species of bacteria that causes many different infections in humans. Certain E. coli strains have developed resistance to antibiotics, making infections with these strains difficult to treat. How do bacteria such as E.

Which mineral can the breakdown of bone release to keep the body in homeostasis? cesium carbon calcium copper

Why did Crocodiles survive the K/T extinction?

The hair continues to become grayer and thinner in both men and women as they age. Actually, it is not that hair turns gray or white, but that it loses the pigments that had previously made it appear to be other colors.

When can a primary succession occur?

Friction between a skateboard wheel and the surface produces?

What are two functions of the cell membrane

Why can eukaryotes carry out more specialized functions than prokaryotes can? A) eukaryotes have more organelles B) Prokaryotes have more organelles C) eukaryotes are bigger D) prokaryotes are bigger

How might mendel's conclusions have differed if he had studied two traits determined by alleles carried on the same chromosome?