Advertisements
Advertisements
प्रश्न
Match the following.
| Group | Characteristics | ||
| 1. | Molluscs | a. | Feed milk to young ones, warm-blooded |
| 2. | Spongers | b. | bag-like body with tentacles around the opening |
| 3. | Flatworms | c. | fins, gills and cold-blooded |
| 4. | mammals | d. | body with large opening and many small pores all over |
| 5. | Fish | e. | jointed legs, exoskeleton |
| 6. | cnidarians | f. | have only one opening |
| 7. | arthropods | g. | hard shell, soft body |
| h. | cylindrical, unsegmented body with mouth at one end and anus at the posterior end |
Advertisements
उत्तर
| Group | Characteristics | ||
| 1. | molluscs | e. | Jointed legs, exoskeleton |
| 2. | sponges | d. | body with large opening and many small pores all over |
| 3. | flatworms | f. | have only one opening |
| 4. | mammals | a. | feed milk to young ones, warm-blooded |
| 5. | fish | c. | fins, gills and cold-blooded |
| 6. | cnidarians | b. | bag-like body with tentacles around the opening |
| 7. | arthropods | g. | hard shell, soft body |
APPEARS IN
संबंधित प्रश्न
Fill in the blank.
The animals without a backbone whose body is soft and often covered by a hard shell are .................
Write a short answer.
What are invertebrates ?
Answer in detail.
You are asked to classify an animal in the correct group. The animal has a soft body and arm-like tentacles. You dissect the animal and find that it has an internal shell. Is the animal a cnidarian or a mollusc? Explain your answer.
Give a reason for the following.
Why do adult amphibians tend to stay near water?
Given below is an animal followed by three terms or features. Underline the term which does not match with the animal.
Whale - Gills, mammary glands, fat under the skin
Mention any one major similarity and one major difference in the following pairs of an animal:
Cuttlefish and Dogfish
The biggest vertebrate animal is the ______.
What is the name of the bone which is filled with air?
In mammals, the testis is enclosed by ______.
How are the reproductive characteristics of mammals different from those of aves?
