Plant cells have a while animal cells do not.
plasma membrane
nucleus
cell wall

List two modern organisms that have pentameral symmetry

If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?

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.