Animal Kingdom
Which among these is the correct combination of aquatic mammals?
The fishes have lungs for respiration.
Fish take in oxygen-rich water through their mouths and pump it over their gills. As water passes over the gill filaments, blood inside the capillary network picks up the dissolved oxygen. The circulatory system then transports the oxygen to all body tissues and ultimately to the cells. Hence The fishes respire through gills.
In fishes lungs are absent.
Hence The fishes have lungs for respiration is an incorrect statement.
So, the correct answer is 'False'.
Which among these is the correct combination of aquatic mammals?
Which one of the following categories of animals, is correctly described with no single exception in it?
Name a common thing in all fishes.
Which of the following is an example for link species?
Skeleton is made entirely of cartilage in______________.
Which of the following is an example for link species?
The axial endoskeleton of Elasmobranchs is made up of
Most venomous fish is
Which one of the fish is natural enemy of mosquitoes?
Some species of fishes are viviparous. An example of this is __________.