Energy can neither be created nor destroyed
Explanation:
eukaryotic glycocalyx is present in prokaryotic cells, eukaryotic cells can also have glycocalyces especially single celled eukaryotic organisms.
<span>In an enzyme controlled reaction, a substrate is the same as a reactant.
Reactant is a substance that will be used (there will be reduced) in reaction. Substrate will bind with enzyme and undergo a chemical reaction, so it will be used to make the product. Catalyst is helping reaction but not used, thus it's not a reactant. </span>
Answer:
They don't reproduce by themselves, they need a host cell.
Explanation:
Answer
the human appendix, the pelvic bone of a snake, and the wings of flightless birds.
Explanation: