Q: Q: What are the "chemical messenger" molecules used by the endocrine system? Choices: - acids - axons - enzymes - hormones A:
A: hormones

Q: Q: Elasticity is the ability of a material to return to its original shape after being stretched or? Choices: - combustion - Contained - correlated - compressed A:
A: compressed

Q: Q: The chloroplast integrates the two stages of what process? Choices: - breathing - defacation - polarization - photosynthesis A:
A: photosynthesis

Q: Q: All proteins are made of monomers called what? Choices: - monotides - aminotides - peptides - amino acids A:
A: amino acids