LIFE CYCLE 1
What are perennials?
Those are plants that live more than two years.
What is plant fertilization?
After pollination, the sperm cell joins with an egg cell inside each ovule. The zygote then develops into the embryo.
What is a zygote?
It is the fertilized egg.
What are annuals?
Those are flowering plants that complete a life cycle within one growing season.
What is seed dispersal?
When the seeds are mature, the wind shakes the seeds out of the cone and carries them away.
How does fertilization occur for algae?
For algae, fertilization can only occur if there is water in the environment.
Name the two stages of a plant’s life cycle.
The two life cycles are sporophyte and gametophyte.
When does fertilization occur?
Fertilization occurs when a sperm cell unites with an egg cell.
What environment do mosses, liverworts, and ferns need to grow?
They need a moist environment.
What happens in the gametophyte stage?
In the gametophyte stage, the plant produces sperm cells and egg cells.
What is pollination?
It is when a grain of pollen falls on the stigma.
What is an ovule?
It is a structure that contains an egg cell.
What happens in the sporophyte stage?
In the sporophyte stage, the plant produces spores.
What are biennials?
Those are plants that complete their life cycles in two years.
What are cones?
Most gymnosperms have reproductive structures called cones.