Fertilization occurs when sperm swim to an egg inside an archegonium.
Sperm nuclei are released into the archegonium.
Sperm nuclei enter the egg.
what enters the egg?
[1] DNA
[2] flow of electrons
[3] insects
[4] Chemical energy
[5] fallopian tube
[6] sperm nuclei
[7] acid
[8] pollen