Which observation proves that a cell is a eukaryote?

a: it contains cytosol

b: it has a nucleus

c it has a cytoskeleton

d: it has a cell membrane

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

Directions: read the descriptions of the four islands presented in the lesson. 1. list two new traits that each new species of rat might demonstrate as it adapts to the conditions on each island. 2. introduce one of the four new rat species to another island and describe one challenge it would encounter and one success as it adapts to its new environment.