Question: Q: The fossil record indicates that anthropoids began diverging from other primates about how many million years ago? Choices: - 70 - 40 - 60 - 50 A:
Answer: 50

Question: Q: What organ system consists of the skin, nails and hair? Choices: - nervous system - digestive system - endocrine system - integumentary system A:
Answer: integumentary system

Question: Q: Tropomyosin is a type of what, that winds around the chains of the actin filament and covers the myosin-binding sites to prevent actin from binding to myosin? Choices: - enzyme - bacteria - amine - protein A:
Answer:
protein