PLEASE HELP WILL GIVE BRAINLIEST A(n) shows the relationships among all species in an ecosystem.
O A) energy pyramid
B) food chain
OC)
food web
O D) environmental change

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

What might explain the real-world results, show in the graph to the right, for one class of twenty students? check all that apply.

Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical. twenty persons were tasters. how many had heterozygous genes? 10 20 0-20 indeterminate