Which organelle in a eukaryotic cell is most noticeable under a microscope? nucleolus

nucleus

ribosome

nuclear envelope

What are the headings of a data table

The first signs of cellular differentiation occur in the blastocyst. why is cellular differentiation important for the development of a fully formed human infant?

Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating