Q: Which blood cells serve to defend the body in various ways? Choices: - helper blood cells - blue blood cells - red blood cells - white blood cells A:
white blood cells

(Question)
Q: What body joint incurs the most common overuse injury among runners and other athletes? Choices: - arm - heel - ankle - knee A:
(Answer)
knee

Ques: Q: What is the only metal that is a liquid at room temperature? Choices: - copper - aluminum - tin - mercury A:
Ans: mercury

(Q).
Q: What do many scientists think are the oldest eukaryotes? Choices: - prokaryotes - plants - arthropods - protists A:
(A).
protists

Ques:Q: Glaciers modify the landscape by what? Choices: - silt - sediment - truncation - erosion A:

Ans:erosion

Q: Which two planetary bodies have humans walked on? Choices: - Mars and Jupiter - The Sun and Mars - Earth and Saturn - earth and the moon A:
earth and the moon