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प्रश्न
Earthworms and frogs breathe through their skin because of which the skin of both organisms is
विकल्प
moist and rough
dry and rough
dry and slimy
moist and slimy
उत्तर
moist and slimy
Explanation:
The skin of the earthworm and the frog feels moist and slimy on touching. It is because, in earthworms and frogs, the exchange of gases takes place by diffusion through the moist body surface.
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संबंधित प्रश्न
Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds?
In cockroaches, air enters the body through ______.
Match the items in Column I with those in Column II:
| Column I | Column II | ||
| (a) | Yeast | (i) | Earthworm |
| (b) | Diaphragm | (ii) | Gills |
| (c) | Skin | (iii) | Alcohol |
| (d) | Leaves | (iv) | Chest cavity |
| (e) | Fish | (v) | Stomata |
| (f) | Frog | (vi) | Lungs and skin |
| (vii) | Tracheae |
Frogs breathe through their skins as well as their lungs.
The fishes have lungs for respiration.
Fill in the Following Blanks with Suitable Words:
Yeast Undergoes ___________ Respiration Whereas Amoeba Undergoes _________ Respiration.
Fish breathe with the help of gills which are richly supplied with blood vessels. The gills help the fish to
Mark the following statement as True or False. Correct the false statement.
Frogs can breathe through their skin as well as lungs.
On average, an adult human being at rest breathes 15–18 times per minute. The breathing rate, however, may differ under different conditions. Arrange the following activities given in the box in order of increasing breathing rates and give a reason for your answer.
sleeping, cycling, brisk walking, watching T.V
Match the names of organisms in Column I with their organs of breathing given in Column II.
| Column I | Column II | ||
| (a) | Butterfly | (i) | Lungs |
| (b) | Earthworms | (ii) | Gills |
| (c) | Sparrow | (iii) | Spiracles |
| (d) | Fish | (iv) | Skin |
