Which of the following pairs of cell components are found in plant cells but not in animal cells?

Me with biology endocrine system crossword also image left i need with hw

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.

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer