In general, the muscles of the anterior compartment of the forearm tend to extend the wrist and fingers, while muscles in the posterior compartment of the forearm tend to flex the wrist and fingers. a. Trueb. False

False

Explanation:

The muscles of the anterior compartment of the forearm perform flexion at the fingers and wrist, while muscles in the posterior compartment of the forearm perform extension at the fingers and wrist

b. the carbon cycle ensures living things have a source of hydrogen

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.