Answer:
The answer is A because it erodes rocks away over time
Explanation:
A
Answer:
b. determine the evolutionary relationships among species
Explanation:
Biologists through the analysis of characters obtained from molecular, morphological, embryological, physiological and behavioral analyzes look for the relationship between species and their origin.Through these coincidences phylogenetic trees are made.
It rains, water moves and erodes the land and creates valleys and rivers.
It is the rib cage (thoracic cage)