CBSE Class 9 Answered
Differentiate between chondrichthyes and osteichthyes.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
|
Characteristics
|
Chondrichthyes
|
Osteichthyes
|
|
Endoskeleton
|
Commonly known as cartilaginous fish as they have cartilaginous endoskeleton
|
Commonly known as bony fish as they have bony endoskeleton
|
|
Body size
|
Large-sized fish
|
Comparatively smaller in size
|
|
Mouth position
|
Ventral
|
Terminal (anterior)
|
|
Type of scale present on skin
|
Placoid scales
|
Scales absent, if present, cycloid scales
|
|
Number of gills present
|
5-7 pairs of gills, not covered by operculum
|
4 pairs of gills, covered by operculum
|
|
Caudal fin
|
Heterocercal
|
Homocercal
|
|
Excretory waste
|
Urea
|
Ammonia
|
Answered by | 04 Jun, 2014, 03:23: PM
Application Videos
-
Classification of Vertebrates
This video explains the basis of classification of organisms with the help ... -
Classification of Vertebrates
This video compares the characteristics of amphibians and fishes. -
Classification of Animals
This video explains the classification of animals based on the heart chambe...
Concept Videos
-
Classification of Animals
Discuss the features of different kinds of vertebrates such as, Pisces, Am... -
Classification of Animals
Discuss the features of different kinds of vertebrates such as, Pisces, Am... -
Classification of Animals
Discuss the features of different kinds of vertebrates such as, Pisces, Am... -
Classification of Animals
Classification of Animals, Vertebrates -
Classification of Animals
Classification of Animals, Vertebrates
CBSE 9 - Biology
What is the difference between the heart structure of cold blooded animals and warm blooded animlas?
Asked by is00331 | 24 Apr, 2021, 08:24: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by nikhilshukla.464 | 14 Dec, 2020, 11:18: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by Prachi9.gangrade | 09 Feb, 2020, 09:44: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by deepali.09deshmukh | 17 Sep, 2019, 07:00: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by deepali.09deshmukh | 13 Sep, 2019, 07:41: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by abhagupta7880 | 17 Feb, 2019, 10:23: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by anvithachoudary10 | 17 Aug, 2018, 10:48: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by Topperlearning User | 09 May, 2016, 07:24: AM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERTCBSE 9 - Biology
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT
