How do the circulatory sysTissues combine to former work at the organ level?

How was the climate when the ambulocetus was alive

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.

20 the main source of energy for our planet comes from the