Which were the earliest oxygen-producing life-forms?

a. cyanobacteria.

b. seaweed.

c. dinosaurs.

d. ferns.

Which reaction is an example of a reflex?

High concentrations of solutes such as sugar or salt results in plasmolysis of cells due to the onset of which phenomenon. Select one: a. Cavitation b. High osmotic pressure c. Ultrahigh temperature d. Low lyophilization

The temperature at which water vapor condenses to liquid form is called

What is a difference between atp and adp molecules? a) adp can be used to directly power movement, while atp cannot. b) atp molecules provide less energy to the cell than adp molecules.

Interestingly, even though hemophilia in the royal families began in England, they were actually the only one of these four families to NOT be affected by it.

Which method is a way of obtaining natural gas? (APEX)

What describes the cell cycle

Which is an example of commensalism in the tropical rainforest? a. parasites feed on the sloth's body. b. sloths are food for other animals. c. algae live in a sloth's fur, providing it with camouflage. d. insects lay eggs in the sloth's waste.

Most of the energy in the United States comes from: fossil fuels hydroelectric plants solar power nuclear power

Georgia's salt marshes have been identified as one of the most extensive and productive marshland systems in the United States.