To carry out photosynthesis.Every and each animal depend on this energy
An organism needs energy and constant supply of materials to grow and develop.
It is any organism that can make its own food by light energy or chemical energy
light energy
An organism needs energy and constant supply of materials to grow and develop.
The organism will surely die if it does not obtain energy since it needs energy to carry out everyday functions.
Light
from water
Spider
It might get enough energy for its needs, or it might not.Note that this is the usual situation - there are usually other organisms, with which an organism has to compete.
Eukaryotes.
Plant via Photosynthesis
All living things with the exception of plants who get their energy directly from the sun. Another exception is some species of microorganisms in the deep sea who can get energy from a certain mineral from deep water hot springs.