Can i have some

answers
a) whales can travel on land when necessary.
b) whales are developing into animals with four functioning limbs
c) whales have functional legs that are hidden by fat and skin
d) whales evolved from four legged animals

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

answer; ///i believe the correct answer is (aids) acquired immune deficiency syndrome;