Which is true about enzymes?
question 10 options:

they act on nonspecific, randomly chosen substrates.

after a reaction, they cannot be reused.

they can speed up metabolic processes in the body.

they cannot change shape.

do not guess i really need to get this right! < 3

They can speed up metabolic processes in the body

Explanation:

Enzymes are specific in action

They are protein in nature

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."