The remains of fossils give scientists clues as to what the world may have been like a long tome ago. If fish fossils are found on the side of a mountain, there may have been a lake there. If a skeleton is found, they can decide what creature it was.
The generalization that all organisms are composed of cells was established through multiple observations in various kinds of animals and plants. A controlled experiment of finding cells in all the kinds of living organisms is not possible or is infeasible as it will require prior knowledge of all the kinds of organisms inhabiting Earth and the effort to catch and bring them in the controlled environment of the lab for testing.
Answer:
CELLS! Living things use energy, move, consume water and food, etc. Any individual form of life that is capable of growing and reproducing is considered an organism. All organisms get water and other materials from the environment.
Explanation:
I believe the answer would be B
