Chapter 8 Multiple Choice
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Created by:
victoriamags on May 19, 2012
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25 terms
Terms | Definitions |
|---|---|
 Both lampreys and hagfishes lack jaws and feed by suction with a muscular mouth and teeth. | True |
| All sharks must swim continuously to respire or else they drown. | False |
| Most cartilaginous fishes have smooth skin. | False |
| Sharks are one of the leading causes of human deaths in coastal towns. | False |
| With a few exceptions, such as manta and devil rays, most rays and skates are demersal. | True |
| Flatfishes have bodies compressed top-to-bottom as an adaptation for their demersal lifestyles. | False |
| Structural colors in fishes result from crystals that act like tiny mirrors. | True |
| The presence of colored stripes, bars, or spots on reef fishes generally is a form of warning coloration associated with toxins or bad taste. | False |
| Sharks often have a large upper lobe on their tails primarily to act as a rudder for steering. | False |
| A much greater diversity of fin shapes and uses has evolved in the bony fishes than in the cartilaginous fishes. | True |
| Similar to humans, fishes have two-part hearts with one side pumping blood to the gills and back to the other side of the heart, which pumps blood to the rest of the body. | False |
| Both myoglobin and hemoglobin can store oxygen. | True |
| The lateral line of bony fishes is used to detect weak electrical fields of prey. | False |
| The coelacanth is a rare fish of biological interest primarily because it has fins with bones like those of land vertebrates rather than fin rays. | False |
| Territoriality behavior in fishes usually involved violent battles between defenders and invaders. | False |
| Schooling in fishes may be coordinated by vision, the lateral line, olfaction, and sound. | True |
| Tunas are major examples of anadromous fishes. | False |
| North Pacific salmon use primarily chemical cues when they migrate around the oceans as adults. | False |
| Dams, excess silt, and pollution are destroying Pacific salmon runs in rivers because they reduce the number of adults that return to the oceans after spawning. | False |
| The migratory behavior of the Atlantic Anguilla eels is essentially the opposite of that of the Pacific salmon. | True |
| Hermaphrodism in some fishes involves males changing into females or vice versa. | True |
| Special organs called claspers are used for internal fertilization in cartilaginous fishes. | True |
| Bony fishes reproduce primarily by internal fertilization. | False |
| Viviparity (live birth) such as found in mammals cannot occur in fishes because they always produce yolky eggs to support embryonic growth. | False |
| Fish gills have high surface areas for gas exchange due to structures called | lamellae |
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