Tommy set up an experiment with corn seeds. He wrote the following hypothesis: "The more water used to water com seeds, the faster the seeds will germinate."
Which variables should Tommy control during his experiment to make sure his experiment is fair?
A
type of seeds, containers seeds are planted in
B.
container seeds are planted in, amount of water
C.
type of seeds, amount of water
D.
amount of soil, amount of water

Plzzz hurry im being timed ! humans, like other organisms, require energy for growth and repair. when cells create atp for energy, carbon dioxide is produced as a waste product. how does the body respond to this process in order to maintain homeostasis? a. the digestive and respiratory systems interact to move carbon dioxide to the lower intestine, where it is transformed into methane. b. the circulatory and digestive systems interact to move carbon dioxide to the stomach, where it to break down food. c. the nervous and urinary systems interact to move carbon dioxide to the kidneys, where it is absorbed into the bloodstream. d. the circulatory and respiratory systems interact to transport carbon dioxide to the lungs, where it is expelled from the body.

The transport tubes for food coming down the plants are called?

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?