Q: What is most of earth's surface covered with? Choices: - insects - sand - silicon - water A:
water

Q: What is the diffusion of water through a semipermeable membrane according to the concentration gradient of water across the membrane Choices: - nutrients - mirrors - Gravity - osmosis A:
osmosis

Q: Q: For feeding, the head contains one pair of mandibles and two pairs of what? Choices: - tracheae - antennae - chelicerae - maxillae A:
A: maxillae

Question: Q: A carcinogen is nything in the environment that can cause what disease? Choices: - glaucoma - alzheimers - diabetes - cancer A:
Answer: cancer

*Question*
Q: What play several important roles in the human body? Choices: - cells - tissues - organs - lipids A:
**Answer**
lipids

*Question*
Q: What is the final stage of aerobic respiration? Choices: - electron production - proton transport - glucose transport - electron transport A:
**Answer**
electron transport