<span>food chains follow just one path of energy as animals find food.
</span>food webs show how plants and animals are involved in ways to help them all survive.
Explanation:
you must add activation energy to initially break the chemical bonds. Catalysts simply lower the activation energy needed to do the chemical reaction going. reactions to occur without themselves being used up in the reaction. Energy is usually needed to break the bonds and get the reaction going.
Answer:
A graph has trait value on the horizontal axis and population of ... selection have similar curves, but the original population peaks
It's some change in the conditions around the organism, which the organism can detect and respond to. A change in temperature, more light, or something physically poking the organism are examples.