During fertilization, a _sperm_ and _egg_ combine to form a _zygote_.
Sperm and egg (gametes) are both haploid, and the fertilized zygote is diploid.
I would say C or D
Hope This Helps
Answer:
uh i mean mushroom
Mushroom = fungi protisty
Atom,molecule,cell,tissue,organism,population,ecosystem,biosphere.