Which of the following is a disadvantage of external fertilization.
a) gametes are released into the surroundings
b) gametes are washed away
c) the developing zygote is protected
d) large number of eggs can be produced at one time
a) gametes are released into the surroundings
b) gametes are washed away
c) the developing zygote is protected
d) large number of eggs can be produced at one time