Ok so when organisms reproduce asexually, they are basically just copies of their parent. Imagine you were copied. The person would be exactly like you . They would have the same DNA and genetic makeup. This would make them have the same alleles. :)
It sends an electrical impulse to make your heart beat. The job of a pacemaker is to artificially take over the role of your sinus node if it isn't working properly. Electrical impulses are sent by the pacemaker to stimulate your heart to contract and produce a heartbeat
B. some species die out when environmental changes occur
Answer:
D
Explanation:
I just took this quiz so you are welcome
