The correct answer to your question is the last one; how species change over time.
Hope that helps!
Answer: If enough evidence accumulates to support a hypothesis, it moves to the next step — known as a theory — in the scientific method and becomes accepted as a valid explanation of a phenomenon.
The differences are animal cells are rectangular whereas plant cells are rectangular. Plant cells have a digit cell wall called that surrounds the cell membrane. Animal Cells do not have cell membranes.
Answer:
Atoms combine when their electrons are shared or transferred
