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zoology > Class Osteichthyes > Flashcards

Class Osteichthyes Flashcards

1
Q

What is the class that includes bony fish

A

Osteichthyes

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2
Q

What does Osteichthyes mean?

A

bony fish

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3
Q

What is the Phylum and Subphylum of Osteichthyes

A

Chordata and Vertebrata

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4
Q

What is the skeleton made of?

A

bone

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5
Q

What is the tail like?

A

Homocercal

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6
Q

What does the skin have?

A

-mucous glands
-dermal scales (ganoid, cycloid, & ctenoid
-no placoid scales

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7
Q

What are the fins like? and what is fin ray made of

A

Paired fins:
-Pelvic and Pectoral Fins
Median Fins:
- Anterior & Posterior Doral fins -caudal fin
-anal fin
fin rays of bone and cartilage

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8
Q

What is the mouth like?

A

Mouth terminal

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9
Q

Respiration by what? and how many pairs of gills

A

4 pairs of gills which is supported by bony gill arches & covered with operculum

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10
Q

How can it float?

A

Has a swim bladder

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11
Q

What is circulation like?

A

two-chambered heart (atrium & ventricle), arterial and venous systems, & 4 pairs of aortic arches

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12
Q

What is the nervous system in brain like?

A

-small olfactory lobes & cerebrum
-large optic lobes & cerebellum
-10 pairs of cranial nerves

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13
Q

What is the reproduction like?

A

-sexes seperate (reverse in some)
-gonads paired
-external fertilization
-oviparous
-have larval stage

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14
Q

What is their body like?

A

Fusiform and laterally compressed

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15
Q

Instead of Conus Arteriosus, Osteichthyes have?

A

Bulbus Arteriosus

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16
Q

What is the fingerlike projection that aid in digestion

A

Pyloric Ceca

17
Q

They do not have?

A

Nicotating membrane

18
Q

What is it called when fish have a darker top and lighter bottom

A

Countershading

19
Q

What does the lateral line scale have?

A

Lateral line scale has a tube because lateral line system is internal

20
Q

What is the teeth for?

A

Grabbing prey to swallow them whole

21
Q

What scale does bass and white perch have?

A

Ctenoid

22
Q

What is the class of the white perch and bass in?

A

Actinopterygii

zoology (64 decks)

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