How do sex cells differ from other cells in an animal's body?
a.They have half the number of chromosomes.
b.They are always moving.
c.They do not need energy to perform their functions.
d.They are usually much larger.

Question

How do sex cells differ from other cells in an animal's body? 
a.They have half the number of chromosomes.
b.They are always moving.
c.They do not need energy to perform their functions.
d.They are usually much larger.

justuu · Answer

A.They have half the number of chromosomes. http://openstudy.com/study#/updates/52d6fc70e4b0e63d49ac0abf read it :)If you want:)