How many types of joints are there in the human body? A.
4
B.
2
C.
12
D.
6

Why might surface mining be less risky for miners than underground mining? a. surface miners can become trapped in a collapsed mine. b. surface miners work in dusty, enclosed areas. c. surface miners work aboveground. d. surface miners use elevators to enter mines.

Which statement best addresses the differences in sex cell differentiation between the red-eared slider turtle and a human?

What tissue type has polarity and is avascular? what tissue type has polarity and is avascular? a. muscle b. connective tissue c. nervous tissue d. epithelium