Chordates
Important Questions on Chordates
Which of the following is correct about vertebrates?
- Dorsal nerve cord.
- Haemoglobin dissolved in plasma.
- Dorsal heart.
- Three or more pairs of limbs.
Category of aquatic mammals include
Ascidia belongs to the subphylum_____
The nerve cord of chordates is:
Retrogressive metamorphosis is a feature of
Which of the following pairs are correctly matched?
(A) Poikilothermous - Birds and mammals
(B) Agnatha - Petromyzon and Myxine
(C) Tunicates - Ascidia, Salpa and Doliolum
(D) Cartilaginous fishes - Betta and Labeo
Which of the following character is not found in all the chordates?
Hollow air-filled bones (pneumatic bones) occur in:
Hair is not found in the adult whales, its body temperature is regulated by:
Whales are included in the same taxonomic class as:
Which of the following group of animals have a constant body temperature?
Which one is the distinguishing feature of all vertebrates?
The character found only in mammals:
The amphibians are characterized by:
