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which of the following is not a characteristic of animals ?

a. all of their cells are diploids
b. they have specialized tissues called "muscles".
c. theyvare always multicellular
d. their cells lack a cell wall

In order to clone adult animals, scientists typically begin with a(n)

Plz will mark! the diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

Up until 1938, paleontologists accepted the idea that coelacanths (an ancient fish) went extinct at the time that they last appear in the fossil record, about 80 million years ago. but in 1938, a live coelacanth was discovered off the coast of south africa that was compared to the fossil record and found to be the same species what goal of science does this discovery represent