The diagram shows the life cycle of a fern.
2
1
3
Female
organs
Male organs
Sperm
4
Young spore-
producing plant
Egg
What does stage 4 show?
A. A spore grows into a mature gamete-producing plant.
B. A zygote forms when a sperm fertilizes an egg cell.
C. A gamete-producing fern plant is flat and shaped like a heart.
D. A mature spore-producing fern plant has fronds and produces
spores.
