Tell us your favorite organ in YOUR body, describe how the specific epithelial and/or connective tissues that make it up affect its function, and describe what sort of disease might result if the tissue structure were changed.

What adaptation is apparent in the bodies of the three tortoise species shown in figure 16-2

Epinephrine is a hormone released from the adrenal gland of the body, most often in a stressful situation. it is known as the "fight-or-flight" hormone. one way that it causes a response in the body is to activate receptors on muscle cells. where are these cellular receptors located? a. on the cell membrane b. in the nucleus c. on the cell wall d. around the mitochondria

If the rna molecule in a human has the nucleotide sequence of guu, this would the amino acid valine would be needed to make the protein. how would this cha process was occurring in a mushroom?