The model shows the hierarchical organization of the human nervous system. Select the level of organization that is a group of tissues working together.

answer; i believe the answer is (polygenic inheritance;

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

i hope this

the animal that would be cutest if scaled down to the size of a cat? elephant

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link: