Explain the feeding process in Hydra.

Important Questions on Diversity in Living World—Animals

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 54

The animals belonging to lower phyla of invertebrates like tapeworm, earthworm etc., are hermaphrodite or bisexual. Does this result in self fertilisation? Justify.

EASY

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 55

Arthropods have mosaic vision. Give reason.

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 56

Locusts can survive in extreme climatic conditions. Give reason.

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 57

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

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 58

Arthropods constitute the largest group of the animal kingdom. Give reasons.

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 59

Balanoglossus can be considered to be a link between non-chordates and chordates. Comment on this statement.

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 60

Justify the position of Echidna in mammals though it lays eggs.

MEDIUM

9th CBSE

IMPORTANT

Pearson IIT Foundation Biology>Chapter 4 - Diversity in Living World—Animals>PRACTICE QUESTIONS>Q 61

Mammals show heterodont dentition. Give reason.