1. Flowers Reproduction/Seed Dispersal

3. Flowers are reproductive organs Composed of:
Sepals
Petals
Stamens
Carpels

4. Sepal Outmost circle of floral parts
Green and closely resemble ordinary leaves
Enclose bud before it opens
Protects flower while it develops

5. petals Brightly colored Found inside sepals
Attract insects and other pollinators to flower
Because they do not produce reproductive cells, petals and sepals are called sterile leaves.

6. stamen Holds “male” reproductive organs:
Filament: long, thin stalk that supports an anther
Anther: oval sac where meiosis (sexual cell division) takes place
Anther creates male gametophytes- pollen grains

7. carpels Innermost floral part Also called pistils
Contains an ovary (female gametophyte)
Also contains style
Style is where the diameter of the carpel narrow into a stalk
At top of the style is a sticky portion known as stigma, where pollen grains frequently land

8. Typical flower produced both male and female gametophytes
In some plants, male and female gametophytes are produced in different plants (i.e. corn)
In other cases, many flowers grow together to form a composite structure that looks like a single flower
Form a ray flower and a disk flower
Ex. sunflower

9. Seed Dispersal
By animals: these are seeds from fleshy, nutritious fruits
Provide nutrition for animal and are then dispersed to areas where there is less competition from parent plant
Passed through animal digestive system
Seeds sprout in animal feces eliminated from animal

10. By wind and water: seeds are typically lightweight
Allows them to be carried in the air or to float on the surface of the water
Example: dandelion