D! The Cell membrane in found in all cells, and it is a single (mono) layer.
Answer:
How long the organism lived
This means having no charge
Any photos below 7 is known as acidic, the lower the pH the more acidic the solution I believe.
Answer:
Crocodiles and snakes are more alike since they both develop from an egg.
Lizards and snakes are more alike since both species have a recent common ancestor.
