write difference between amphibians and pisces - Science - Diversity in Living Organisms

Question

write difference between amphibians and pisces

Nripendra kumar · Accepted Answer

Pisces

Amphibians

Entirely aquatic

Not entirely aquatic, but most of the larval
stages live in water and move to land

Highest taxonomic diversity among vertebrates
with 32,000 species

6,500 extant species

Evolved before 500 million
years

Evolved from fish before 400 million
years

More species in saltwater than
freshwater

Aquatic species are mostly inhabit freshwater
than saltwater

Scale covered skin

No scales, but moist
skin

Respiration mainly through gills, except
lungfishes

Respiration takes place through lungs mainly
However, skin, oral cavity, and gills are also functional in any
combination of those according to the environment they
live

Metamorphosis is very
rare

Metamorphosis is
common

Class Pisces	Class Amphibia
This class includes fish such as Scoliodon, tuna, rohu, shark, etc. These animals mostly live in water. Hence, they have special adaptive features such as a streamlined body, presence of a tail for movement, gills, etc. to live in water	It includes frogs, toads, and salamanders. These animals have a dual mode of life. In the larval stage, the respiratory organs are gills, but in the adult stage, respiration occurs through the lungs or skin. They lay eggs in water

Pisces	Amphibian
Heart is 2 chambered	Heart is 3 chambered
Skin covered with scales	Scales are absent.
They breathe through gills.	They breathe through gills in larval stage and through lungs in adult stage.

Pisces	Amphibians
Entirely aquatic	Not entirely aquatic, but most of the larval stages live in water and move to land
Highest taxonomic diversity among vertebrates with 32,000 species	6,500 extant species
Evolved before 500 million years	Evolved from fish before 400 million years
More species in saltwater than freshwater	Aquatic species are mostly inhabit freshwater than saltwater
Scale covered skin	No scales, but moist skin
Respiration mainly through gills, except lungfishes	Respiration takes place through lungs mainly. However, skin, oral cavity, and gills are also functional in any combination of those according to the environment they live
Metamorphosis is very rare	Metamorphosis is common

write difference between amphibians and pisces .