When the patellar tendon is tapped, the result is the contraction of the quadriceps femoris muscle. By contrast, the hamstring muscles remain relaxed due to the: a. stretch reflex.
b. withdrawal reflex.
c. Golgi tendon reflex.
d. crossed-extensor reflex.

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.

Compare the shapes of the bones of the human skull with the shapes of the bones of the human leg. how do the shapes differ? why are the shapes important?

At what point in the eukaryotic cell cycle does mitosis occur