<span>A) water, rock, and tectonic cycles</span>
Invertebrate doesn't posses "Backbone" whereas Vertebrate chordate have that. That's the only & most important difference between them.
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Translation is the second phase of protein synthesis. This process occurs in the cytoplasm in an organelle called the ribosome. Where the strand of RNA is deciphered to synthesize peptides.
Answer:
Nucleus
the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
Nucleolus
a small dense spherical structure in the nucleus of a cell during interphase.
