Question: Q: Lobsters are what kind of food source? Choices: - combination - mollusc - sauropod - arthropod A:
Answer: arthropod

Question: Q: Vertebrates have evolved more complex digestive systems, with some species having multi-chambered types of what organ? Choices: - respiratory - skin - heart - stomach A:
Answer: stomach

Question: Q: Glutathione is a low-molecular-weight compound found in living cells that is produced naturally by what? Choices: - blood - brain - amino acids - liver A:
Answer:
liver