Proteins from outside a cell that stimulate it to divide are called A. oncogenes. B. stem cells. C. cyclins. D. growth factors

Why are forests called "biodiversity hot spot"?

Which component of the meninges is responsible for removing metabolic wastes? A) Subarachnoid space B) Cerebrospinal fluid C) Dura mater D) Grey matter

Which statement correctly describes the data shown in the graph and the type of observation used? The gingko tree grew 14 feet; this is a qualitative observation. The bur oak tree's growth rate averaged 2.

Click on the true statements about dna. (select all that apply.)

Sickle cell anemia is a disease that causes the blood cells to be shaped like sickles instead of being circular. The table describes the phenotype of red blood cells when a particular genotype is present.

The nucleus and other organelles of a neuron are primarily housed in which part of the cell? axon dendrite glial cell cell body none of the choices is correct.

What does every letter of the mRNA strand correspond to? (there is no chain to go with this question)

Is Sirius B brighter or dimmer than the sun?

The chart below shows examples from two groups of organisms, multicellular and one-celled. the tissues and organs in group a perform functions that are

A patient has very low levels of steroid hormones in his body, and his doctor thinks it is due to poor nutrition. How could the patient alter his diet to address this deficiency? Consume butter and oils. Restrict butter and oils.