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Relationships in Ecosystems

Relationships in Ecosystems

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Author: Kendra Reyes
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LS2.A: Interdependent Relationships in Ecosystems

-Plants depend on water and light to grow (2-LS2-1).

-Plants depend on animals for pollination or to move their seeds around (2-LS2-2).

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Tutorial

Biology of Plants

What does the word "pollination"
mean?

Pollination is the transfer of pollen from a stamen to a pistil. Pollination starts the production of seeds.

What about plants that
don't have flowers?
 
Some plants don't have flowers. Plants such as
mosses and ferns reproduce by spores. Cone-bearing plants, like pine or spruce trees for example, reproduce by means of pollen that is produced by a male cone and travels by wind to a female cone of the same species. The seeds then develop in the female cone.

BIG QUESTION!

Grab your Science Journal and write or draw a picture to answer this one question:  What do insects do to make pollination happen?

Peep Plants a Seed!

What does it take for a plant to grow?

Grover Discovers What Plants Need

Standards

LS2.A: Interdependent Relationships in Ecosystems

-Plants depend on water and light to grow (2-LS2-1)

-Plants depend on animals for pollination or to move their seeds around (2-LS2-2)