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प्रश्न
Fill in the blank.
Fishes obtain oxygen from water through ......................
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उत्तर
Fishes obtain oxygen from water through gills.
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संबंधित प्रश्न
Write one difference between the following pair:
Arthropoda and Mollusca
Select the most appropriate answer.
Milk in the body of mammals is produced by
Find the odd one out. Give reason.
snail, oyster, earthworm, octopus
Answer in detail.
Write two characteristics of amphibians.
Give reason for the following.
What happens to the body temperature of a fish when the temperature of water drops?
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Monkey - External ear, sweat glands, lateral line.
Write important characters of chordates?
Karl Von Linne was involved with which branch of science?
Assertion (A): Mammals give birth to their young ones.
Reason (R): Platypus is an egg-laying mammal.
What is the unique feature of chordates?
