Is a process by which organisms with characteristics suited to the environment will survive and reproduce.
a.
natural selection
c.
evolution
b.
artificial selection
d.
organic evolution

A.) "Natural Selection" is a process by which organisms with characteristics suited to the environment will survive and reproduce.

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This is what i found on google “phytoplankton, tiny organisms that live in the ocean, are autotrophs. some types of bacteria are autotrophs. most autotrophs use a process called photosynthesis to make their food.” i hope this you for what your looking for

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.