Number 5 this is due in 3 hours i’m desperate :

#4 )

The option that is a disadvantage of external fertilization is the option that states gametes may get washed away. 

#5 )

The option that is an advantage of internal fertilization is the option that states the developing zygote is protected.

The developing zygote is protected would be the correct answer
not 100% sure

Ithink it’s one of those things that you put the object on