EASY
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Which statement is incorrect for animals belonging to class of Chondrichthyes?

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Important Questions on Animal Kingdom

MEDIUM
Which of the following characteristic features always holds true for the corresponding group of animals?
EASY
Select the taxon that represents both marine and freshwater species.
MEDIUM
Which one of these animals is not a homeotherm?
EASY
Which one of the following characteristics is not shared by birds and mammals?
EASY
Which of the following characteristics is mainly responsible for the diversification of insects on land?
MEDIUM
Identify the differences between Chondrichthyes and Osteichthyes:
a) Chondrichthyes have gill slits covered by operculum and Osteichthyes have gill slits without operculum
b) Chondrichthyes have a swim bladder and Osteichthyes do not have a swim bladder
c) Chondrichthyes contain placoid scales and Osteichthyes contain cycloid scales
d) Chondrichthyes contain terminal mouth and Osteichthyes contain ventral mouth
HARD
Which among these is the correct combination of aquatic mammals?
EASY
An important characteristic that Hemichordates share with Chordates is
EASY
In the case of Poriferans, the spongocoel is lined with flagellated cells called
EASY
Which of the following features is not present in the phylum Arthropoda?
EASY
The chitinous exoskeleton of arthropods is formed by the polymerization of:
MEDIUM

Match the following correctly related to cartilaginous fishes ?

  Column I   Column II
(i) Sphyma (a) Sting ray
(ii) Torpedo (b) Dog fish
(iii) Trygon (c) Saw fish
(iv) Pristis (d) Electric ray
(v) Scoliodon (e) Hammer headed shark
EASY
A marine cartilaginous fish that can produce electric current is:
EASY
Which is the National Aquatic Animal of India?
MEDIUM

Statement I: Sternum appeared for the first time in amphibians.
Statement II: Snakes have 10 pairs of cranial nerves.

The correct option among the following is

MEDIUM

Name the classes of Tetrapoda that exhibit the following characters:

Column (A) Column (B)
Acrodont Thecodont
10 pairs cranial nerves 12 pairs cranial nerves
Cold-blooded Warm-blooded
Amphicoelous vertebrae Amphiplatyan vertebrae
EASY
Which one of the following living organisms completely lacks a cell wall?
EASY
Body having meshwork of cells, internal cavities lined with food filtering flagellated cells and indirect development are the characteristics of phylum: