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| the ________ are the most ancient group of sessile echinoderms |
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| delicate echinoderms found on teh seafloor are the ___________________ |
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| the flexible connective tissue found in sharks is ________ |
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| the flap of tissue that covers a bony fish's gills is the ___________O |
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| primitive invertibrets- tunicate, lacelet, acorn worm- are members of the ____________ |
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| in sea stars, the clinging and pulling of muscles in _____ _____ allows movement |
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| the pair of organs in a male shark between pelvic fins that transfer sperm is called ______ |
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| in bony fish, the release of gametes during external fertilization is called ________ |
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| the symmetry of echinoderms is refered to as |
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| what fish can inflate its stomache with water when threatened, resulting in a balloon-shaped body? |
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which fish is least related to the others?
- barracuda
- skate
-shark
-ray |
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| what is the fastest fish in the ocean? |
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alla re examples of primitive chordates except:
flounder
acron worm
sea squirt
lancelet |
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| the crown of thorns sea star is considered a pest because it |
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which of the following is a cartilagineous fish?
- mola
- sea horse
- manta ray
- barracuda |
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| the echinoderms that differs from all other in that it lacks an endoskeleton, and only retains small bony pieces in its skin, is the |
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which of the following structures is not present in all fish species?
-scales
- closed circulatory system
-gills
02 chambered heart |
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| a sea star can open up a clam because of the functioning of its |
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| the chordates are animals that contain a notochord, gill slits, and |
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| sea urchins scrape teh algea from rock surfaces with a specilized mouthpart called the |
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| the structure that enables a fish to detect sound vibrations is |
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| you notice that a sea star in an aquarium has one very short arm. the ebst explination for this is that |
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Definition
| the appendages was lost and its regenerating |
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Term
what is a jawless fish?
- shark
-flounder
-mola
- hagfish |
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| the small ciliated projections that enable breathing in the sea star are called |
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which of the following statements concerning sharks are incorrect?
- all sharks haev a ventral mouth
- all sharks will depart if hit in the nose
- all sharks are man eaters
- all sharks must move in order to breathe |
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Definition
| all sharks have a ventral mouth |
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Definition
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| wthe age of a bony fish can be told by the |
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| bands of citculi of the scales |
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| the side of a sea star on which its sieve plate is found is the |
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which of these echinoderms moves most rapidly on the seafloor?
-sea urchin
- sea star
- sea lilly
- brittlestar |
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| the function of teh water vascular system in the sea |
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