Fire naturally occurs in a grassland ecosystem and it helps the environment stay healthy and strong. I promotes richer soil as well as gets rid of excess leaves scattered around. After a fire, grassland ecosystems can grow again and be better than they were before.
The cell wall is a rigid organelle composed of cellulose and lying just outside the cell membrane. The cell wall gives the plant cell it's box-like shape. it also protects the cell. The cell wall contains pores which allow materials to pass to and from the cell membrane.
TCGAGTC
Adenine (A) always pairs up with Tymine (T) while Cytosine (C) always pairs up with Guanine (G)
<span>work to convert light energy of the Sun into sugars that can be used by cells</span>
