Term
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Definition
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Term
Which is diploblastic?
- Ctenphore (comb jelly)
- Acorn worm
- Flatworm
- Starfish
- Arthropod
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Definition
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Term
| Flow of food in amphioxus? |
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Definition
- Oral Cirri
- Wheel Organ
- Pharynx
- Midgut Diverticulum
- Hindgut
- Anus
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Term
Which form of caudal fin is only found in extinxt animals?
- heterocercal
- hypocercal
- homocercal
- diphycercal
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Definition
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Term
Tye fossil Haikouella most closely resembles...
- Amphioxus
- Placoderm
- Tunicate Larvae
- Acorn worm
- Sea lily
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Definition
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Term
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Definition
| copious amounts of slime to escape predators |
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Term
| Ammocoetes and amphioxus appear similar; however, only ammocoetes has a... |
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Definition
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Term
| The head skeleton of a shark does NOT consist of... |
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Definition
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Term
| Roofing bones of the skull are what type of bone? |
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Definition
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Term
| Conodonts are of particular evolutionary interest because they seem to... |
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Definition
| be very early animals that had dentine and enamel. |
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Term
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Definition
| an extinct jawless fish of the Cambrian to Devonian periods, having a heavily armored body. |
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Term
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Definition
| an extinct marine animal of the Cambrian to Triassic periods, having a long wormlike body, numerous small teeth, and a pair of eyes. It is now believed to be the earliest vertebrate. |
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Term
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Definition
| an extinct fish of the Devonian period, having the front part of the body encased in broad flat bony plates. |
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Term
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Definition
| a primitive jawless marine vertebrate distantly related to the lampreys, with a slimy eellike body, a slitlike mouth surrounded by barbels, and a rasping tongue used for feeding on dead or dying fish. |
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Term
| Cycloic and Ctenoid scales are made of... |
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Definition
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Term
| When a lamprey is feeding, they respiratory current of water enters through the _________ and exits through the __________. |
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Definition
| Pharyngeal slits; pharyngeal slits |
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Term
| What characteristic do Dipnoi, Holocephali, and skates have in common? |
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Definition
| Grind food using flat teeth. |
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Term
| The bones in the limbs of an amphibian can be most readily homologized to the bones or cartilages in the fins of... |
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Definition
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Term
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Definition
| The Rhipidistia were lobe-finned fishes that are the ancestors of the tetrapods |
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Term
| Adult urochordates posses |
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Definition
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Term
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Definition
| Symmetrical and the supporting rod pointed up |
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Term
| Most actinopterygians have |
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Definition
| Flexible fins supported by lepidotrichia |
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