Biology, asked by rampervesh385, 10 months ago

what are the bony fishes? give two examples​

Answers

Answered by kanika2749
4

Answer:

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Explanation:

Scientific Name: Osteichthyes, Actinopterygii, Sacropterygii

Common Names: Bony fish, ray-finned and lobe-finned fishes

Basic Animal Group: Fish

Size: From below a half inch to 26 feet long

Weight: Well under an ounce to 5,000 pounds

Lifespan: A few months to 100 years or longer

Diet: Carnivore, Omnivore, Herbivore

Habitat: Polar, temperate, and tropical ocean waters as well as freshwater environments

Conservation Status: Some species are Critically Endangered and Extinct.

Description

All bony fishes have sutures in their neurocranium and segmented fin rays derived from their epidermis. Both bony fish and cartilaginous fish breathe through gills, but bony fish also have a hard, bony plate covering their gills. This feature is called an "operculum." Bony fish may also have distinct rays, or spines, in their fins.

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Answered by dharanikamadalm
0

Answer:

Osteichthyes are bony fishes.

Eg: Ocean sunfish, giant oarfish

Explanation:

Characteristics of Osteichthyes:

  1. cold-blooded vertebrates
  2. Some breath through gills
  3. use fins to swim
  4. have endoskeleton is bony
  5. paired fins
  6. a pair of gill openings
  7. a pair of nostrils
  8. scales
  9. the mouth is terminal with teeth
  10. they are heterotrophs, omnivores, carnivores and filter feeders
  11. cloaca is absent
  12. different genital and anal openings
  13. the heart is two-chambered. But in lungfishes have three chambered.  
  14. mesonephric kidney
  15. tail is homocercal

Among vertebrates, Osteichthyes includes the largest number of living species 28,000.  

Of all the fishes Osteichthyes accoutn 96%.

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