Puppies born too large experience difficulties in birthing and tend to have respiratory and other problems. puppies born too small often can’t compete with their siblings for their mother’s milk. thus, puppies born not too large or too small have a survival advantage. this is an example of selection.

Stabilizing selection

Explanation:

This type selects individuals with intermediate phenotype, that is, closer to the average. The extremes, in this case, have a disadvantage over the others, not being selected.

This selection can be seen in the question above, which shows that puppies too small or too large have serious survival disadvantages, while puppies with the intermediate phenotype, which are medium-sized puppies, have survival advantages when compared to the other two phenotypes.

the aorta is the large artery leaving the heart branches into smaller arteries, which eventually branch into capillaries.the arteries carry oxygen and nutrients away from your heart, to your body's tissues. the capillaries are small, thin blood vessels that connect the arteries and the veins. the statement that arteries carry oxygen-rich blood to capillaries is true. veins on the other hand are blood vessels that take oxygen-poor blood back to the heart.