Answer: corpus luteum secretion
Explanation:
Answer:
Explanation:
i m not confirmed but i think hag fishes are present before vertebrates
<span>This fact pattern best fits the idea of the Gradualism Model. This particular model focuses on how species slowly grow and change through evolution over time. Essentially, the model is that species will very slowly change into another type of species as time passes.</span>
Inherited traits
Reason they get use to their environment
