4Most flowers have 4 basic parts. petalspistilstamensepals
5Some floral structures are nonessential; they are not required for reproduction. petalscolorful, protect reproductive structures, attract pollinatorssepalsleaf-like structures which protect the flower before blooming
6Some floral structures are essential for reproduction to occur. stamensmale organs, produce sperm in pollen grainspistilfemale organ, produces egg(s)
7Stamens ( ) are made of 2 parts. antherproduces pollenfilament
8Pistils ( ) are made of 3 parts. stigmastyleovaryproduces egg(s)
12When pollen lands on the stigma, this process is called pollination. A pollen tube grows from the pollen grain and the sperm migrate to the egg.The first sperm fertilizes the egg.The egg and sperm unite in a process called fertilization.
13There are 2 types of pollination. When pollen lands on a stigma of the same flower, this is self-pollination.
14When pollen lands on a stigma of another flower, this is cross-pollination.
15Agents of pollination include insects, birds, and wind.
16The egg and sperm unite in a process called fertilization. The two cells (egg and sperm) become one new cell called a zygote.The zygote begins to grow and develops into a seed.zygote
17As the seed develops, the ovary grows into a fruit. This means that anything you eat with a seed(s) is a ripened ovary.