They start as single cell orginisms then they evolve from there.
hope that helps
A Multi-Celled organism has many cells (more than one). Examples would be plants, humans and animals/mammals.
A Single-Celled organism only has one cell that makes up it's entire self. Examples would be bacteria and archaea.
Cell, tissue, organ, organ system, organism if that’s what you are referring to
Answer:
Be
Explanation:
its B bc theres 4 elections
Answer:
3) they lose energy at a varying rate - is the correct answer.
Radioactive decay is defined as the process by which an unstable atomic nucleus loses its energy by emitting radiations. The decay is random and cannot be predicted earlier.
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Explanation: