Question: Q: Karyotyping shows whether what structures, which contain genetic information, are normal in number and appearance? Choices: - neutrons - ribosomes - nucleoids - chromosomes A:
Answer: chromosomes

Question: Q: What is the most prevalent gas in the atmosphere, but not the most vital for life? Choices: - carbon dioxide - oxygen - argon - nitrogen A:
Answer: nitrogen

Question: Q: What happens to the level of relative humidity in the evening as air temperature declines? Choices: - it goes up and down - it falls - nothing - it rises A:
Answer:
it rises