Amount of energy required for a chemical reaction to occur

Activation energy is the minimum energy required to cause a process (such as a chemical reaction) to occur.

Explanation:

a. seed plant structure. 1. the three main plant organs are roots, stems, and leaves. a fourth kind of tissue, meristematic tissue, is responsible for plant growth. meristematic tissue is the only plant tissue that produces new cells by mitosis. plants can lose water out of their leaves as they exchange gases with the air

explanation:

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.