Plant Growth, Development, and Response: Seed Dispersal

The video tutorial explains seed dispersal, highlighting its importance for plant survival and colonization. It describes various methods of dispersal, including wind and animal assistance. The tutorial also discusses how seeds are adapted to different dispersal mechanisms, such as being light enough for wind transport or being ingested by animals and later excreted in favorable locations.

Why is seed dispersal crucial for plant species?

• It helps plants avoid predators.

• It makes seeds more colorful.

• It increases the size of the seeds.

• It allows plants to colonize new areas.

Which adaptation helps milkweed seeds to disperse?

• Being light enough to be carried by the wind.

• Being colorful to attract birds.

• Being sticky to attach to animals.

• Having a hard shell to protect from digestion.

What characteristic allows seeds to be carried by the wind?

• Being sticky and rough.

• Being light and airy.

• Being colorful and bright.

• Being heavy and dense.

How do some seeds travel great distances with the help of animals?

• By being eaten and excreted.

• By growing roots quickly.

• By floating on water.

• By being blown by the wind.

What happens to seeds that are ingested by animals?

• They dissolve in the stomach.

• They are digested and provide nutrients.

• They are excreted and can grow if conditions are favorable.

• They become part of the animal's body.