Q: Q: Which proteins recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms? Choices: - enzymes - collagen - essential amino acids - antibodies A:
A: antibodies

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

Q: Q: What is the term for the simplest form of matter that has a unique set of properties? Choices: - an electron - an atom - a neutron - an element A:
A: an element

Q: Q: Photoreceptors in each ocellus receive light only through the opening where there are none of which cells? Choices: - clear - opqaue - secreted - pigmented A:
A: pigmented