Question

puppies born too large experience difficulties during birthing and tend to have respiratory and other problems. puppies born too small often cant compete with their siblings for their mothers milk. thus, puppies of intermediate size have a survival advantage. this is an example of ___ selection. directional stabilizing disruptive frequency allelic

Explanation:

Stabilizing selection favors intermediate - sized individuals. In this case, large puppies have birthing and respiratory problems, small puppies can't compete for milk, and intermediate - sized puppies have a survival advantage. Directional selection favors one extreme phenotype. Disruptive selection favors both extreme phenotypes. Frequency - dependent selection is based on the frequency of a trait in a population. Allelic selection is about alleles.

Answer:

stabilizing