Question: Q: What are the primary producers in the ocean? Choices: - fish - zooplankton - algea - phytoplankton A:
Answer: phytoplankton

Question: Q: A gene may have different versions called what? Choices: - genomes - peptides - locus - alleles A:
Answer: alleles

Question: Q: What gas is released by burning of fossil fuels and contributes to global warming? Choices: - nitrous oxide - hydrogen - helium - carbon dioxide A:
Answer:
carbon dioxide