Which is the best example of predation?
Hookworms live in the intestines of dogs and feed on their blood.
Barn owls often capture and eat mice that live in fields.
A colony of termites protects the eggs laid by a queen termite.
Two species of shellfish grow in the same shallow ocean waters.

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.