B is the answer. I repeat B is the answer.
Answer:
All populations must have an adequate amount of food, water, shelter, and space to maintain homeostasis
They can’t change from bone to stomach cells. Once the cell has a dna set it will become what that dna is set for it to become and can’t change.
Carbohydrates are mainly transported in the phloem in the form of sucrose. The cell membrane of the sieve cells contains pump proteins that actively convey sucrose into the vascular pathways.