Pls help In chemistry, elements ___

choices are :
have distinct chemical characteristics

are rarely found in ionic form

are the primary form of energy

readily change from one form to another

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

here's one link:

a- multicellular

b-eukaryotic

c-no cell wall

d-heterotrophic

e-autotrophic