George is lifting weights. he starts by doing biceps curls which involves his elbows. his elbow is able to bend because the humero-ulnar joint is a joint. sam is doing leg presses, his knees as he pushes against the weights. the knee joint is primarily a joint, though it can act as a condylar joint when flexed. meanwhile, jane is doing "lat pulls" by pulling downward on a weighted bar. this movement involves of her arms. her shoulder joint is a joint, allowing a wide range of movements.

George is lifting weights. He starts by doing biceps curls which involves flexing his elbows.  His elbow is able to bend because the humero-ulnar joint is a hinge joint.  Sam is doing leg presses, extending his knees as he pushes against the weights. Meanwhile, Jane is doing "lat pulls" by pulling downward on a weighted bar. This movement involves adduction of her arms.  Her shoulder joint is a  ball-and-socket joint, allowing a wide range of movements. 

each of the 46 original chromosomes splits into two daughter chromosomes, so there are two sets of 46 daughter chromosomes that end up in each cell. human cells have 46 chromosomes. each chromosome consists of a pair of identical chromatids attached together by a structure called a centromere.

the answer is otpion c) understanding

he wants to be heard one more time. he wants to be understood. he needs the truth one more time.