Which blood vessels carry oxygen-rich blood from the lungs to the heart?
o
a. arteries
b. veins
c. capillaries
d. alveoli

What process did darwin’s book suggest that organisms evolve through

Which of the following are causes of coastal erosion? check all that apply. beach grasses and other plants trap windblown sand. wave action carves away the coastline. groundwater under pressure is forced to earth’s surface. artificial structures stop the natural flow of sand along the coast. underground caves collapse as bedrock is dissolved.

Which of the following is the most likely outcome of global warming