Most have eight but some have as many as twelve.
The variations might help the organism to survive if there is a change in its environment
Eg heat resistant bacteria
The variation might help the organism survive predators
Eg. Green beetles blend with green leaves thus disabling crows to spot them
:)
<span>Most children acquire a firm sense of gender identity by the age of three</span>
12-A
15-B
11-C
6-D
1-E
10-F
8-G
9-H
5-I
3-J
7-K
14-L
4-M
13-N
2-O
Cells are constantly dividing and replacing old or damaged cells.
