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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
What are the differences between amphibians and reptiles?
Explain how animals in Vertebrata are classified into further subgroups.
Write down four main characters of Platyhelminthes. Give two examples.
What do you mean by the term coelomate animals? Give two examples.
Give four general characters of phylum Mollusca. Write down two examples.
Write down four characters of mammals. Give two examples.
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Grasshopper-Wings, trachea, proboscis
Name any two animals which possess compound eyes.
______ in 1623, introduced the binomial nomenclature.
Assertion (A): Reptiles are warm-blooded animals.
Reason (R): They have scales.
