Q: Which organ has a thick mucus lining that protects the underlying tissue from the action of the digestive juices? Choices: - liver - colon - spleen - stomach A:
stomach

Q: What basic structures are the site of all the life functions of an organism? Choices: - lipids - proteins - genes - cells A:
cells

Q: Q: Polygenic traits are controlled by more than one of these? Choices: - phenotypes - chromosomes - genomes - genes A:
A: genes

Question: Q: What do you call chemical reactions that take place inside living things? Choices: - contaminated reactions - autonomous reactions - physical reactions - biochemical reactions A:
Answer: biochemical reactions

*Question*
Q: What term is used for any combination of two or more atoms? Choices: - element - synthesis - nucleus - molecule A:
**Answer**
molecule

(Q).
Q: What is the largest level of organization? Choices: - organelle - genome - protein - organism A:
(A).
organism