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Abeka Science chp.9
| Question | Answer |
|---|---|
| Into what two groups are bony fish divided based on their fins? | Ray-finned fish and Lobe-finned fish |
| List the four types of scales and describe their shape | Placoid- teeth-shaped ganoid- diamond-shaped Cycloid-round Ctenoid-scalloped with exposed edges |
| Describe the structure of a fish's gill | Each gill is made of an arch from two rows of the gill filaments |
| What group of sensory organs do fish possess that land animals lack? | Lateral line |
| What organ allows a fish to float at different depths? | Swim bladder |
| What are the two ways that a fish produce light? | Electric organs, photophore |
| Identify the two classes of cartilaginous fish and give two examples from each class | Chondrichthyes- sharks and rays Cyclostomata- lampreys and hagfish |
| What is the name for the scales that cover a shark's body? | Denticles |
| List two differences between true rays and skates. | Skates lay eggs and have dorsal fins. True rays give birth to live young and do not have a dorsal fin. |
| What is the name for the sawfish's unusual nose? | Rostrum |
| Describe the differences between the three types of chimaeras' noses. | Short-nosed chimaeras have rounded or cone-shaped noses. Plow-nosed chimaeras have trunklike noses. Long-nosed chim aers have long, pointed,n or paddle-shaped noses. |
| For what reasons does the hagfish produce slime? | To suffacte prey, ward off predators, and line burrow walls |
| What is the name for scientists who study reptiles and amphibians? | Herpetologists |
| What is the largest lizard? | Komodo dragon |
| What is the smallest lizard? | Jaragua Sphaero |
| What is the transparent eye covering of a gecko called? | Spectacle |
| What are four methods of snake locomotion? | Concertina movement, side-winding movement, lateral undulation, rectilinear movement |
| For what does a snake use its Jacobson's organ? | To smell |
| List three design features the snake has that help it eat large meals. | Double-hinged jaws, saliva, movable trachea |
| What are the two types of snake venom and which parts of the body do they affect? | Neurotoxic- nervous system, Hemotoxic-circulatory system |
| What are the three common groups of turtles mentioned in the text? | Marine turtles, Freshwater turtles, Terrestial turtles |
| What are the four types of crocodilians? | Crocodile, alligator, caiman,gavials |
| What is the function of the parietial eye? | To see solar radiation |
| What are the differences betwwen a sauropd and a theropod? | A sauropod is a large herbivorous animals with elephantine legs. A theropod is a large carnivorous animal that walked on two legs. |
| What are the three groups of amphibians? | Salamanders, frogs and toads, and caecilians |
| What are the requirements for an animal to be a tetrpod? | Four legs, slimy body, no hair , scales ,or feather |
| What are the three groups of salamanders? | Wholly terrestrial, wholly aquatic, and amphibious |
| Define metamorphosis. | The changing of an immature hatchling to an adult |
| What is the group to which both toads and frogs belong? | Anurans |
| What is the name for a frog or toad larva? | Tadpoles |
| Why are caecilians rarely seen? | There are rarely seen because they either are burrowing or aquatic. |
| What are annuli? | Numerous skin folds or ring on a caecilian. |
Created by:
lcathyleanmorgan
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