Question

Which of the following is a behavior that MOST LIKELY resulted from phylogeny?

a. A baby starts to cry in response to a loud noise
b. A baby reaches out toward a mobile
c. A baby gets wet in the rain
d. A baby starts to scream when her mother leaves the room

Answer 1

A baby starting to cry in response to a loud noise is the behavior that MOST LIKELY resulted from phylogeny, as it is an instinctive response that has developed over the course of evolution to help protect infants. So, the correct answer is option a.

Step-by-step explanation:

The question, "Which of the following is a behavior that MOST LIKELY resulted from phylogeny?" requires understanding the instinctive behaviors, or reflexes, of newborn babies that are the result of their phylogenetic development. Among the options given, a behavior like a baby starting to cry in response to a loud noise is most likely the result of phylogeny.

Loud noises can startle newborns, and the response to cry when startled is considered an instinctive behavior. This is unlike behaviors elicited by environmental factors, such as getting wet in the rain, which are not related to phylogeny. Similarly, behaviors such as reaching out toward a mobile or crying when a mother leaves the room involve more complex developmental processes that are not solely based on phylogenetic inheritance.

So, the correct answer is option a.