Which types of proteins activate some chemical reactions in the body?

The shift of a vehicle's weight around its center of gravity is known as

Identify characteristics of energy from the sun. check all that apply. almost all of the energy on earth comes from the sun. energy from the sun is known as mechanical energy. the energy in fossil fuels originally came from the sun. plants convert the energy of sunlight into chemical energy.

Coral have a symbiotic relationship with what in order to eat?