Q: What percentage of men suffer from some form of erectile dysfunction by age 40? Choices: - approximately 60 percent - approximately 10 percent - approximately 80 percent - approximately 40 percent A:
approximately 40 percent

Q: What kind of radiation is greatest at the equator and lessens toward the poles? Choices: - lunar raditation - small radiation - large radiation - solar radiation A:
solar radiation

Q: Q: What is a germ cell that divides into gametocytes during gametogenesis? Choices: - cocklebur - gonads - pollenation - gametogonium A:
A: gametogonium

Question: Q: Aquatic biomes in the ocean are called what? Choices: - jungle biomes - arid biomes - artificial biomes - marine biomes A:
Answer: marine biomes

*Question*
Q: What color does red litmus paper turn in the presence of a base? Choices: - green - purple - white - blue A:
**Answer**
blue

Q: Enzymes in the stomach and small intestine break down proteins into what components? Choices: - atoms - antioxidants - lactic acids - amino acids A:
amino acids