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प्रश्न
What are the differences between animals belonging to the Aves group and those in the mammalia group?
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उत्तर
| Aves | Mammals | |
| 1. | Most birds have feathers and they possess a beak. | They do not have feathers and the beak is also absent. |
| 2. | They lay eggs. Hence, they are oviparous. | Some of them lay eggs and some give birth to young ones. Hence, they are both oviparous and viviparous. |
संबंधित प्रश्न
Write one difference between the following pair:
Invertebrates and Vertebrates
Match the animals given under column A with their respective classification group given under column B
| Column A | Column B | ||
| 1 | Sponge | a | Amphibia |
| 2 | Snail | b | Reptilia |
| 3 | Butterfly | c | Echinodermata |
| 4 | Toad | d | Mollusca |
| 5 | Lizard | e | Arthropoda |
| 6 | Starfish | f | Porifera |
Write down four characteristics of Ctenophora.
Define the term hermaphrodite.
Write down four characters of mammals.
Give one point of difference between notochord and nerve cord.
Write down four general characters of Porifera.
Write down four general characters of cnidarians (coelenterates).
Write two main characters of the following animal and name the phylum it belongs to: Jelly fish
Name any two animals which possess compound eyes.
Give two examples of each of the following: Nemathelminthes
Give two examples of each of the following: Annelida
Fill in the blanks:
Ascaris is the example of phylum ______.
Choose the correct answer: The animal of phylum protozoa is
Choose the correct answer: Which of the following is not a helminth parasite?
Choose the correct answer: Whittaker is famous
Choose the correct answer: Multicellular producers are
Assertion (A): Reptiles are warm-blooded animals.
Reason (R): They have scales.
Assertion (A): All vertebrates are chordates but all chordates are not vertebrate.
Reason (R): The members of subphylum vertebrata possess notochord, during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below:
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:
