The Problem of FruitPlant Reproduction, Fruit and Seed Dispersal

How do plants reproduce? Plants use flowers or

cones to fertilize the egg Pollen and eggs

How do plants reproduce Plants depend on animals

or force of nature to pollinate them Flowers: animals, insects Cones and other: wind,

water

Problem 1 Flowers are pretty and take a ton of

energy to create Why would a plant invest so much energy

and time into a pretty flower, or into crazy reproductive parts?

To attract an make fertilization possible

Pollination Pollen moves through “style”

#swag And fertilizes an egg in the

ovary

Ovary becomes fruit

Problem 2 Why would a plant spend so much

energy to create a fruit?

To transport seeds

Seed movement Animals might burry seed

Squirrel burry acorn Animals might poop seed

Apple, Berries, Vegetables Seed might float away

Coconut

Why is moving seeds important?

Other Seed Dispersal Methods Burrs, Wind, Spores

Seed Dispersal Success Depends Upon

Type of animals Environmental factors Number of seeds produced Seed landing in right spot

Review Why do seeds spend so much energy

creating flowers and systems of fertilization?

Why do seeds invest so much energy in fruit production?

Practice Why would a plant be more successful

as a species if it is spread out over a wide geographical area?

What are some factors that affect the successful germination of seeds?