Which Hormone Has Only One Known Effect: to Stimulate Milk

question 91

Multiple Choice

Which hormone has only one known effect: to stimulate milk production by the breasts?

• A) progesterone
• B) prolactin
• C) estrogen
• D) oxytocin

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Definitions:

Phylogeny

The branch of biology that deals with the evolutionary development and diversification of a species or group of organisms.

Derived Homologies

Features shared by descendants of a common ancestor that have undergone evolution to serve new functions.

Synapomorphies

Shared derived characteristics or traits that are used to establish evolutionary relationships among species or groups.

Common Ancestor

The most recent individual from which all organisms in a group are directly descended.