(Question)
Q: What basic structures take in nutrients from the soil and help the plant survive? Read this paragraph and choose the correct option from the provided answers: Choices: - tissues - stems - leaves - roots A:
(Answer)
roots

(Question)
Q: What do chemical reactions need to be activated? Read this paragraph and choose the correct option from the provided answers: Chemical reactions also need energy to be activated. They require a certain amount of energy just to get started. This energy is called activation energy . For example, activation energy is needed to start a car engine. Turning the key causes a spark that activates the burning of gasoline in the engine. The combustion of gas won't occur without the spark of energy to begin the reaction. 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? Read this paragraph and choose the correct option from the provided answers: Antibodies These proteins recognize and combine with harmful materials, including both toxic chemicals and invasive microorganisms (such as bacteria and viruses). When an antibody binds to its target, it is tagged for destruction. This tag is recognized by white blood cells, which complete the process. Some antibodies also partially or completely deactivate their targets while waiting for further help from white blood cells. Choices: - enzymes - collagen - essential amino acids - antibodies A:
(Answer)
antibodies