Answer:
Extension: Produced by the sartorius and quadriceps femoris group of muscles.
Flexion: Produced by the biceps femoris, semitendinosus, and semimembranosus muscles.
Explanation:
The answer you are looking for is B.
Answer:
Bone marrow is the answer,pls check If I am correct
Answer: Your hypothalamus
Explanation:
