Evolution is an explanation of how organisms develop and diversify.
Explanation:
In the process of evolution theory of natural selection is the most important concept to know. The theory of natural selection states that individual who adapted to the environment, survival of the fittest. As a result of interactions between organisms and the environment diversity in population occurs. Due to mutation and genetic combination, different characteristics in the organism appear and diversity happens.
Answer:
The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.
Therefore, B is the answer.
"All living cells require water for survival" is NOT a statement from the cell theory.
If they can successfully produce fertile offspring, they belong to the same species.
Your answer is correct. Chitin provide the strength to insect exoskeletons. Cellulose is the strength for plant. Starch and glycogen are energy sources for life.