13.2 Blume Science Word Scramble
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Question | Answer |
What does annelids mean? | little rings |
What are annelids? | tube shaped bodies that are divided into many segments |
What are on the bristle like structures called outside of the body? | setae |
Can setae help the worm move and sense? | yes |
What kind of symmetry does it have? | bilateral |
What 2 body openings does it have? | a mouth and a anus |
Where can annelids live? | freshwater & saltwater & moist soil |
What are some annelids examples? | earthworms & marine worms & leeches |
Each body segment has how many pairs of setae? | 4 |
Each body segment has 4 pairs of setae except? | the first and the last |
A Earthworm has 2 sets of muscles. What are they? | one set runs the length and the other set circles the body |
Where does the soil enter the worm? | its mouth |
Where does it go after it enters? | the crop which is a sack used for storage |
Behind the crop is the ___________? | gizzard which is a muscular structure which grinds the soil and the bits of organic material |
This grind up matter passes to the ______? | intestines where the organic matter is broken down& nutrients are absorbed by blood |
After it goes through the intestines it _______? | exits the worms anus |
Castings _______ the soil? | help |
Taking in of the soil to get food helps what? | provide spaces for air and water to flow through the soil& mix it |
Annelids have what kind of circulation? | closed |
How many blood vessels do they have? | 2: one along the top and another along the bottom they meet in front |
What are like 5 hearts and pump blood? | aortic arches |
Smaller vessels go where? | into each body segment |
What do annelids not have? | gills or lungs |
Oxygen and carbon d. exchange where? | through their skin |
Never do what with earthworms? | never touch an earthworm with dry hands; never remove thin mucus layer |
What size of brain does a earthworm have? | small |
They respond to what? | light&temp&moisture |
Earthworms are? | hermaphrodites |
Earthworms reproduce? | it can make both egg and sperm but cant feritlize its own |
Created by:
sraymond
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