What is the primary energy source for all living things?

Question

What is the primary energy source for all living things?

Answer 1

the sun

Answer 2

Fusion reactions on the sun.

Answer 3

Radiation from the sun and heat from the ineterior of the earth

Answer 4

The Sun.

Which is powered by nuclear fusion.. not nuclear fission. (Nuclear plants uses nuclear fission.

Answer 5

The most common answer that teachers and profs will accept as correct is "the sun", which ignores orgnaisms that live on chemical gradients as found near deap sea vents, and ignores the possibility of life outside teh solar system.

Answer 6

God is the primary energy source for all living things. Without Him there would be no life, breath, light, joy, thought, wisdom, ability, food, sanity, completion, love, understanding, knowledge, choice, or freedom.  

Answer 7

The heat from the sun as well as the light and photons that comes with it. THis lets all the grass and microorganisms grow and then u have the food chain

Answer 8

The sun.

Plants use the sun to make energy. Then animals eat the plants and get the energy from the plants. Then other animals eat the first set of animals and get energy from that.

After each step, energy is lost, that is why the farther down the chain (food chain), the more an organism needs to consume.

Answer 9

God

Answer 10

Nuclear power.

The sun is a big fusion reactor while heat at deep sea vents (which have quite an amazing ecosystem and have even been suspected of being the place where life first arose) comes from radioactive decay of radioactive materials (e.g. U238, K40, Th232) inside the Earth.

Some people seem to dislike the fact that all our energy is nuclear, but reality doesn't care.

Answer 11

The sun, for sure! We could (and should) be using the sun for all our energy needs. It can be done, in fact, it IS being done by a lot of people now - check out earth 4 energy: http://linkbee.com/HFW

Soon we will all be doing it.