sorry about the late response...
<u>If an earthworm is exposed to dry conditions, then it will retreat to a moist place because its skin needs to stay moist for the earthworm to survive.</u>
Answer:
Na+ is positively charged as it loses an electron
Cl- is negatively charged as it gains an electron
Predator 1: wolves
Predator 2: foxes
Prey 1: bison
Prey 2: prairie dogs
They have a different amount of neutrons.