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प्रश्न
Write important characters of chordates?
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उत्तर
Important chordate characters are:
- Presence of dorsal, hollow, tubular, nerve cord
- Presence of long notochord
- Presence of series of gill slits
APPEARS IN
संबंधित प्रश्न
Tick (✓) the appropriate answer:
Identify the aquatic animal with scaly skin which breathe with gills
Name one example of the animal which shows the following characteristics:
Can live in water as well as on land:
Fill in the blank.
Some .....................have two pairs of legs per segment.
Fill in the blank.
The backbone of vertebrates is made up of a number of small bones called .....................
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 |
Answer in detail.
Name the different classes of arthropods. Write one characteristic feature of each class.
Answer in detail.
Write two characteristics of mammals
Which ones of the following animals are invertebrates?
Housefly, Silverfish, Trout, Jellyfish, Whale, Penguin, Lizard and Sponge
Karl Von Linne was involved with which branch of science?
Write a note on mammals.
