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प्रश्न
Distinguish between Class Pisces and Class Amphibia.
उत्तर
| Pisces | Amphibia | |
| i. | They are marine or freshwater animals. | They can live in water as well as on land. |
| ii. | Exoskeleton is in the form of scales. | Exoskeleton is absent in these animals. |
| iii. | They have paired or unpaired fins for swimming. | They do not have fins. They have two pairs of appendages and their digits are without claws. |
| iv. | Aquatic respiration takes place through gills. | Larvae of amphibians are strictly aquatic and perform aquatic respiration only. Adults can perform aquatic as well as aerial respiration |
संबंधित प्रश्न
Answer in brief.
Give scientific classification of shark up to class.
Give scientific reason
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Sketch, labell and classify Shark .
Sketch, labell and classify Frog .
My body is _________ shaped to minimize water resistance.
Find an odd one out.
Complete the following chart.
| Type | Example | |
| A) | Pisces | |
| B) | Amphibians | |
| C) | Mammalians | |
| D) | Reptilians |
Complete the following activity.
Who am I, if I respire with gills?
Complete the following activity.
Identify me, if I am warm blooded?
We are Crocodile and Alligator.
We can’t breathe in water, why?
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______ are jawless vertebrates.
Spiny anteater is an example for ______ mammal.
State whether true or false. If false, correct the statement.
Fishes have two chambered heart
State whether true or false. If false, correct the statement.
Skin of reptilians are smooth and moist.
State whether true or false. If false, correct the statement.
Female mammals have mammary glands.
List five characteristic features of fishes.
