What does the word cytokinesis actually mean

What is the answer for the complicated molecules that make up living things usually contain carbon. why is carbon so important in these molecules?

When explaining dominant and recessive traits to a younger family member, they respond, "well chances are i can probably taste ptc, since dominant traits are more common." how might you address this misconception?

What function does the limb sever in each animal? how are the limb bones of the four animals similar? based on these similarities what can be inferred about the evolution of the four animals.