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life science chapter 15 E-F

Across
Roundworm phylum
These have a part of their life cycle when they penetrate the host's skin
In order to get oxygen, the earthworm's skin must be ____
Segmented worm phylum
Small blood vessels that connect veins and arteries
____ tubules help an earthworm get rid of wastes
Clusters of nerve tissue
Stores food
Longest part of the earthworm's digestive system
Takes blood away from the heart
Takes blood toward the heart
Down
Australian native people
_____ arches help an earthworm's circulation
Tube food travels through
Used in your text as a typical roundworm
Blood-sucking member of Annelida
Muscular tube that sucks food in
Grinds the food
Earthworm burrows help oxygen and ____ to penetrate the soil