Answer:
There is a precise compatibility between the active site and the lactose molecule.
Explanation:
An enzyme's active site has a specific shape, where only the substrate it is designed for can fit. It's much like a puzzle, where you must have the right pieces join together or else you wont get a coherent picture.
Answer:
The comments are correct, the answer is arthropods
A city needs power plants to support just about everything in it, just as a cell needs the mitochondria to support the cell in doing it's job.
Mountain that forms in the Earths crust when molten material, or magma, reaches the surface.
Answer: The vascular plants are set apart in two main ways: Vascular plants have vascular tissues, which circulate resources through the plant. This feature allows vascular plants to grow to a larger size than non-vascular plants, which lack these specialized conducting tissues and are therefore restricted to relatively small sizes.
