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30 Cards in this Set
- Front
- Back
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What kind of circulatory system does a fish have?
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closed circulatory system
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What are the two chambers of the heart?
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atrium/auricle, ventrical
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What are the vessels that carry blood away from the heart?
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arteries
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What are the vessels that carry blood to the heart?
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veins
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Where does the artery take the blood to?
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gills
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Where does the blood go after the gills?
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through another artery to capillaries that lead to individual cells
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What happens after the blood goes through the body?
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old blood flows through veins back to heart
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What do all fish breathe through?
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gills
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What are the three types of fish?
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-cartilinigious
-bony -jawless |
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What is the oldest type of fish?
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jawless
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What do cartilinigious fish have to do to get water over their gills?
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move constantly
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How do bony fish get oxygen?
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through their mouth
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What system of a fish is the most developed?
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the nervous system
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What are the sections in the brain?
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-cerebellum
-cerebrum -medulla |
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What does the cerebellum do?
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coordination/balance
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What does the cerebrum do?
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voluntary motion
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What does the medulla do?
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automatic processes
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What does the backbone protect?
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the spinal chord
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What is the spinal chord made up of?
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nerves
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Describe a fish`s hearing.
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-no eardrums/ears
-skull bones sense vibrations |
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Describe a fish`s sight.
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-near-sighted
-most can`t see color |
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What kind of fertilization?
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external
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What reproductive organ produces eggs?
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ovaries
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What reproductive organ produces sperm?
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testes
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What is it called when a female lays eggs?
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spawning
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What is the fluid in which sperm cells are covered in called?
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milt
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What are the two fishes that travel long distances for spawning?
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-salmon
-perch |
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What are the characteristics of fish?
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-ectotherms
-streamlined bodies -good sense of smell -highly developed nervous systems |
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What are the two types of jawless fish?
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-hagfish
-lampreys |
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What organ produces bile to digest fat?
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liver
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