To prevent blood flowing back after each heartbeat. They ensure that the blood flows only in one direction (back to the heart).
<span>B. RW. Whenever something is dominant the letter will always be capitalized on a punnet square. Since both given animals are homozygous dominant then the answer should all be in capital letters. Since there are no recessive parents which is represented by lowercase letters.</span>
Answer:
The number of offspring produced is often related to the amount of parental care. Typically, the higher fecundity, the lower the amount of time parents devote to caring for the offspring.
