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Ch7 Notes
mollusks, worms, arthropods, echinoderms
9
Science
6th Grade
03/05/2008

Additional Science Flashcards

 


 

Cards

Term
Name six charecteristics of mollusks.
Definition

1.About 110,000 species named

2.Most live in water

3.Soft-bodied

4.Usually shelled

5.Bilateral symmetry

6.Invertebrates

 

Term
Describe the "journey" of food from the mouth to the anus in a worm
Definition

1.Mouth

2.Crop

3.Gizzard

4.Intestine

5.Anus

 

*released in castings

Term
Front end of a worm
Definition
anterior
Term
back end of a worm
Definition
posterior
Term
What are castings?
Definition

Worm waste

Term
How do worms help the environment?(2 ways)
Definition

1.Castings fertilize the soil

2.Worm tunnels create holes where water and light can pass through

Term
What is the largest species group?
Definition
Marine worms
Term
What are the only invertebrates that can fly?
Definition
Insects
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