I found this photo, i hope it helps
Answer:
different traits inherited by pffspring have different survival values
Explanation:
Answer:
Due to the large number of fossils being discovered at that time Darwin proposed that species change over long periods of time.
Explanation:
The theory of Darwin was that the species change in accordance to their environment, thus they develop advantageous traits so that they can be more competitive.
Increase in irritability , ie change in mood and an inability to regulate behaviour
