What epidermal layer consists of multiple layers of living keratinocytes and scattered dendritic cells?

answer: the answer is b

when it is at an intermediate population density

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.

i wish i could with all of them i can barley see the first one so here's the answer to the first one b