Animals with backbones are called vertebrates and animals without backbones are called <span>invertebrates.
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Answer:
It's true that anabolic steroids used by some bodybuilders and athletes contain testosterone or chemicals that act like testosterone. The difference is that doses used in testosterone replacement only achieve physiologic (natural) levels of hormone in the blood.
Explanation:
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<span>Two types of processes that contribute to the formation of the proton gradient are 1) </span>processes that release H+ from compounds that contain hydrogen, and; 2) processes that transport H+ across the thylakoid membrane.
In biology, the active site is the region of an enzyme where substrate molecules bind and undergo a chemical reaction. The active site consists of residues that form temporary bonds with the substrate (binding site) and residues that catalyse a reaction of that substrate (catalytic site).
