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प्रश्न
Write important characters of chordates?
उत्तर
Important chordate characters are:
- Presence of dorsal, hollow, tubular, nerve cord
- Presence of long notochord
- Presence of series of gill slits
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संबंधित प्रश्न
Tick (✓) the appropriate answer:
Identify the animal which is not an Arthropoda
Give two examples of Reptiles:
Categorize the following animals under their appropriate columns of classification
| Animals | ||||
| Dog | Grasshopper | Rat | Scorpin | Toad |
| Butterfly | Lizzard | Turtle | Frog | Bat |
| Snail | Honey bee | Pigeon | Liverfluke | Leech |
| Cattle | snake | Rohu | Parrot | Ascaris |
| Earthworm | Cow | Rabbit | Monkey | Elephant |
|
Classification: |
||||
| Worms | Molluscs | Fishes | Amphibians | Reptiles |
| Birds | Mammals |
Fill in the blank.
...................... live in the digestive tract of many vertebrates including human beings.
Fill in the blank.
The backbone of vertebrates is made up of a number of small bones called .....................
Answer in detail.
Write two characteristics of birds.
Mention any one major similarity and one major difference in the following pairs of an animal:
Insects and Birds
Write zoological names of earthworm.
Assertion (A): Mammals give birth to their young ones.
Reason (R): Platypus is an egg-laying mammal.
How are the reproductive characteristics of mammals different from those of aves?
