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प्रश्न
Describe some flight adaptations of the birds.
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उत्तर
Adaptations in birds for flight:
(i) Possess a spindly or boat-shaped body covered mostly by feathers.
(ii) Forelimbs are modified into wings for flight.
(iii) Bones are light and spongy due to presence of air cavities.
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संबंधित प्रश्न
How do annelid animals differ from arthropods?
How are the criteria for deciding divisions in plants different from the criteria for deciding the subgroups among animals?
Write down four general characters of phylum Arthropoda. Give two examples.
What are differences between the following :
(a) Cartilaginous fishes and bony fishes ;
(b) Amphibia and Reptilia ;
(c) Aves and mammals.
Distinguish between Nonchordata and Chordata.
Explain the general characters of phylum Arthropoda. Give one example of following classes
(i) Crustacea;
(ii) Myriapoda;
(iii) Insecta;
(iv) Arachnida.
Give any one difference between the following :
Flatworm and Roundworm
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Butterfly- Insecta, Invertebrata, Mollusca
Give four important characters of mammals.
Write two main characters of the following animal and name the phylum it belongs to: Jelly fish
Give two examples of each of the following: Platyhelminthes
Give two examples of each of the following: Annelida
Fill in the blanks:
The excretory organs of platyhelminthes are ______.
Choose the correct answer: The animal of class pisces is
Choose the correct answer: Which of the following is not a helminth parasite?
Carolus Linnaeus is known as the Father of ______.
Assertion: Binomial name is the universal name and contains two names.
Reason: It was first introduced by Carolus Linnaeus
Bilaterally symmetrical and acoelomate animal are exemplified by:
Consider the following statements:
- Annelids are true coelomates
- Poriferans are pseudocoelomates
- Aschelminthes are acoelomates
- Platyhelminthes are pseudocoelomates
Choose the correct answer from the options given below:
