Answer:apply membranes to the thistle tubes
Explanation:
It is called lock and key model. it theorize that enzymes and its substrate behave like a lock and key which fits into each other and does not fit into any other system(lock or key)
Answer:
Cell
Explanation:
They are the 'building blocks' of life and make up organisms.
I believe it is D, with my knowledge on the subject.
Answer:
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Explanation:
