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प्रश्न
Write a short note.
Mammals
उत्तर
- Presence of mammary glands is the typical character of members belonging to class Mammalia.
- Exoskeleton is in the form of hairs or fur.
- They are warm-blooded animals.
- Their body is divided into head, neck, trunk and tail.
- Digits of mammals are provided with nails, claws or hooves. For e.g. Elephant, humans, kangaroos, dolphin, bat, etc.
संबंधित प्रश्न
Give scientific reason
All vertebrates are chordates but all chordates are not vertebrates.
Complete the following chart.
| Type | Character | Example |
| Cyclostomata | ||
| Gill respiration | ||
| Amphibia | ||
| Whale | ||
| Poikilotherms |
Sketch, labell and classify Frog .
My body is _________ shaped to minimize water resistance.
Find an odd one out.
What are the animals having vertebral columns in their body called as?
Which animal doesn’t have a neck?
Complete the following activity.
Identify me, if I am warm blooded?
Identify the animal having four chambered heart.
The animal without skull is ______.
Poikilothermic organisms are ______.
Air sacs and Pneumatic bones are seen in ______.
The larvae of an amphibian is ______.
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.
How are the limbs of the birds adapted for avian life?
State whether True or False:
Bat is a mammal.
To which class does bat belong?
