Which of the following resources is a nonrenewable resource?
a. gold
b. river
c. carbon
d. tree

What organ is the first to receive nutrients that have been absorbed from the digestive tract?

The function of the excretory system is to control homeostasis and

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations