(Question)
Q: What basic structures take in nutrients from the soil and help the plant survive? Choices: - tissues - stems - leaves - roots A:
(Answer)
roots

(Question)
Q: What do chemical reactions need to be activated? Choices: - food - space - products - energy A:
(Answer)
energy

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