MEDIUM
9th CBSE
IMPORTANT
Earn 100

Blood is usually blue in colour in molluscs. Give reason.

Important Questions on Diversity in Living World—Animals
MEDIUM
9th CBSE
IMPORTANT
Arthropods constitute the largest group of the animal kingdom. Give reasons.

MEDIUM
9th CBSE
IMPORTANT
Balanoglossus can be considered to be a link between non-chordates and chordates. Comment on this statement.

MEDIUM
9th CBSE
IMPORTANT
Justify the position of Echidna in mammals though it lays eggs.

MEDIUM
9th CBSE
IMPORTANT
Mammals show heterodont dentition. Give reason.

MEDIUM
9th CBSE
IMPORTANT
Write any two points of difference between flat-worms and roundworms.

MEDIUM
9th CBSE
IMPORTANT
Complete the following table.
Common name | Scientific name |
Mangifera indica | |
Rose | |
Tiger | |
Tulsi | |
Lion | |
Triticum aestivum | |
Peacock | |
National flower |

MEDIUM
9th CBSE
IMPORTANT
Distinguish between oviparous animals and viviparous animals.

EASY
9th CBSE
IMPORTANT
Give one example for each of the following:
Fish that breathes by lungs.
