Term
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Definition
| A life cycle in which creatures are hatched in fresh water, migrate to salt water when adults, and return to fresh water in order to reproduce. |
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Term
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Definition
| Fishes that live on the bottom |
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Term
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Definition
| Surface pigment cells that expand and contract to produce various colors |
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Term
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Definition
| Bands of muscle along the sides of fishes used for locomotion |
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Term
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Definition
| Projections along the inner surface of fishes' gills used for filter-feeding |
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Term
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Definition
| The regular movement of an organism from one location to another |
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Term
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Definition
| Referring to fishes that migrate from fresh water to reproduce in the ocean |
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Term
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Definition
| A situation in which an animal has the reproductive organs of both sexes |
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Term
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Definition
| A type of development in which eggs are hatched outside a female's body |
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Term
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Definition
| A type of development in which eggs are hatched inside the female's body |
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Term
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Definition
| A type of development in which the young obtain their nutrients and are birthed live |
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Term
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Definition
| An area of the shark's intestine which increases surface area without taking up much space |
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Term
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Definition
| Sharks' sensors which can detect minute electrical fields in the water. |
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Term
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Definition
| ...allow for the buoyancy of fishes, because depending on how much gas is inside, fish can either sink or rise in the water column. |
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Term
T/F
When a bony fish closes its mouth, the operculum opens to allow the water to exit. |
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Definition
TRUE
When a bony fish closes its mouth, the operculum opens to allow the water to exit. |
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Term
T/F
Sharks have gas bladders for buoyancy. |
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Definition
FALSE
Sharks have gas bladders for buoyancy. |
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Term
T/F
A bony fish has an operculum, not gill slits. |
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Definition
TRUE
A bony fish has an operculum, not gill slits. |
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Term
T/F
A dark spot near the tail of the fish is a form of *disguise.* |
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Definition
FALSE
(it's mimicry)
A dark spot near the tail of the fish is a form of *disguise.* |
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Term
T/F
Fish have a countercurrent system of blood flow. The blood flows over their gills. |
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Definition
TRUE
Fish have a countercurrent system of blood flow. The blood flows over their gills. |
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Term
T/F
Fish with ctenoid scales feel rough to the touch. |
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Definition
TRUE
Fish with ctenoid scales feel rough to the touch. |
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Term
T/F
Sharks like to hunt people. |
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Definition
FALSE
Sharks like to hunt people. |
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Term
T/F
Hagfish have slime which deter predators. |
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Definition
TRUE
Hagfish have slime which deter predators. |
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Term
T/F
Bony fish have large scales, fins, terminal mouths... |
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Definition
TRUE
Bony fish have large scales, fins, terminal mouths... |
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