Water, oxygen, and carbon dioxide can enter a cell through: a. simple diffusion c. facilitated diffusion b. osmosis d. active transport

How do cells grow and reproduce to maintain homeostasis?

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.

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