Ecology is the study of cells and their functions.

false - it is the study of atomic bonds and matter
true
false - it is the study of dead organisms
false - it is the study of organisms and their environment

What is the membrane that sheath of schwann cell containing cytoplasm and nucleus that encloses myelin

What happens to the amount of waste in the pond as the ecosystem ages?

Cancer cells spread to other parts of the body by entering the bloodstream. which of the following organs could prevent a cancer cell in the bloodstream from spreading, and why? a. the spleen, because it releases lymphocytes into the blood b. the peyer's patches, because they release lymphocytes into the blood c. the lymph nodes, because they release lymph into the blood d. the thymus, because it releases lymph into the blood