appear; disappear
im not 100% sure if thats what is being asked, but they fit and are true
They make up structural parts of cell membranes
During fertilization, a _sperm_ and _egg_ combine to form a _zygote_.
Sperm and egg (gametes) are both haploid, and the fertilized zygote is diploid.
Answer:
The temperatures around the world
Explanation:
