Q: What may the jointed appendages of arthropods be used for? Choices: - jumping - crawling - digging - walking A:
walking

Q: The right ventricle pumps what type of blood toward the lungs? Choices: - plasma - oxygenated - oxygen-rich - oxygen-poor A:
oxygen-poor

Q: Q: What control reproductive cycles, which are in turn regulated by environmental cues? Choices: - brain waves - enzymes - nerve impulses - hormones A:
A: hormones

Question: Q: What are two of the most common vision problems? Choices: - blindness and astigmatism - myopia and nearsightedness - cross-eye and blindness - nearsightedness and farsightedness A:
Answer: nearsightedness and farsightedness

*Question*
Q: What are the tiny, tube-shaped structures found inside a kidney called? Choices: - neurons - jejunum - dendrites - nephrons A:
**Answer**
nephrons

*Question*
Q: What does burning wood release into the atmosphere? Choices: - oxygen - helium - hydrogen chloride - carbon dioxide A:
**Answer**
carbon dioxide