Which statement is true for the cell in model A but not for a cell in model B? O A. The cell membrane is represented by the surfaces of the cube.

O B. Substances can enter the cell by passing through the cell membrane.

C. The entire cell surface is in contact with the external environment.

O D. Substances can leave the cell by passing through the cell membrane.

Aboy jumps into a cold swimming pool and his body tempature goes down hus muscles ,blood vessels

Me with biology endocrine system crossword also image left i need with hw

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one