Which population of frogs is likely to have more changes after many generations? descendant Species 1: The frogs in the brown hills.
Descendant Species 2: The frogs in the green forest.
Both are equally likely to have changes in their structures.

Explain the reasoning for your answer

both are equally likely to have changes in their structure

they are known to reach a speed of 21 miles per hour

blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium of the heart. as the ventricle contracts, blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs where it is oxygenated.