How are the circulatory systems in animals and plants alike? A- Their circulatory systems move blood throughout the organism
B- Their circulatory systems transport nutrients to cells
C-Both plants and animals have a pulmonary circuit
D- All plants and animals have a heart

I think B

Explanation:

The circulatory system is the method of transport in plants and animals. Animals must have nutrients and oxygen reach every cell in their body. Plants must have nutrients and carbon dioxide reach every cell in their "body." The circulatory system is how these things are carried around the living organism.

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme