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प्रश्न
TYRANNOSAURUS
(One of the extinct animals which lived on the Earth about 100,000,000 years ago) Tyrannosaurus was about six meters long and it preyed upon other animals.
What do you think about its classification-was it an amphibian, a reptile or a mammal?
Can you call it a relative of Kangaroo? Yes/No. Give reason
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उत्तर
No, it is not a relative of Kangaroo as Kangaroo is a mammal and Tyrannosaurus is a reptile.
Characteristics of Tyrannosaurus:
- The body has scales which may be horny
- Lays eggs which have a leathery shell
- One of the dinosaurs which moved on the earth. These ruled the earth. Some were vegetarian, others were non-vegetarian. Archaeopteryx is a link between reptiles and birds. Its fossils have been found, which vanished from the earth due to ice-age.
- Had three-chambered heart as ventricles are partially divided
- Cold-blooded animals.
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संबंधित प्रश्न
How do annelid animals differ from arthropods?
Give four general characters of phylum Mollusca. Write down two examples.
What are differences between the following :
(a) Cartilaginous fishes and bony fishes ;
(b) Amphibia and Reptilia ;
(c) Aves and mammals.
Write short note on protochordates.
Distinguish between Nonchordata and Chordata.
Explain general characteristics of phylum Platyhelminthes and Nematoda. Give two examples of each.
Write two main characters of the following animal and name the phylum it belongs to: Whale
Write the name of oviparous mammal.
Choose the correct answer: 'Systema naturae' has been written by
______ in 1623, introduced the binomial nomenclature.
