Carbon-14 and carbon-12 have the same number of protons but a different number of neutrons. these different forms of the same element are
a. radioactive
b. isotopes
c. nuclei
d. tracers

i'm pretty sure its b i might be wrong though!

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101