What events allowed the ratites to grow larger and lose their flying ability

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

because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

the correct answer is sex-linked recessive.

i just took the test