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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
Give two examples of Reptiles:
Give names of two animals which are found as parasites inside the human intestine.
Fill in the blank.
..................... and liver fluke live in the intestines of human beings and cattle.
Fill in the blank.
Most arthropods have a tough outer body covering called ..........................
Select the most appropriate answer.
Milk in the body of mammals is produced by
Differentiate between
insects and crustaceans
State if the following statement is true or false. Correct the statement if it is false.
A tapeworm is a flatworm that lives in the human intestine.
Answer in detail.
How are the bones of birds different from those of other vertebrates?
What is the name of the bone which is filled with air?
What is the unique feature of chordates?
