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प्रश्न
Select the most appropriate answer.
Bones with large air cavities are present in
a. cnidarians.
b. fish.
c. annelids.
d. birds.
पर्याय
cnidarians
fish
annelids
birds
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उत्तर
birds
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संबंधित प्रश्न
Categorize the following animals under their appropriate columns of classification
| Animals | ||||
| Dog | Grasshopper | Rat | Scorpin | Toad |
| Butterfly | Lizzard | Turtle | Frog | Bat |
| Snail | Honey bee | Pigeon | Liverfluke | Leech |
| Cattle | snake | Rohu | Parrot | Ascaris |
| Earthworm | Cow | Rabbit | Monkey | Elephant |
|
Classification: |
||||
| Worms | Molluscs | Fishes | Amphibians | Reptiles |
| Birds | Mammals |
Fill in the blank.
A ................. has an external coiled shell.
State if the following statement is true or false. Correct the statement if it is false.
Reptiles have a scaly skin. They lay eggs with a hard shell and are warm-blooded animals.
Answer in detail.
Why are mammals regarded as the most advanced animals?
Give reason for the following.
What happens to the body temperature of a fish when the temperature of water drops?
Mention any one major similarity and one major difference in the following pairs of an animal:
Whales and Fishes
Giving birth to young ones is described as ______.
The biggest vertebrate animal is the ______.
How are the reproductive characteristics of mammals different from those of aves?
On the basis of the position of the notochord, classify the different prochordates. Justify your answer.
