Answer:
The answer is mitochondira of heterotoph cells
Explanation:
Answer:
New species can appear gradually through small changes in an ancestral species.
Explanation:
The new species that appear are due to hereditary variations that occur in a population. The adaptive variations are said to confer a selective advantage to organisms possessing them. The result of variations is that well adapted individuals are able to survive and reach the reproductive age and pass over their favourable characteristics to their offspring.
Answer:
D) Can simple organic molecules form spontaneously in an oxygen-free atmosphere?
Explanation:
