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प्रश्न
Give two examples of Coelenterates:
Give two examples of cnidarians (coelenterates).
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उत्तर
Coelenterates: 1. Hydra 2. Jellyfish
संबंधित प्रश्न
Tick (✓) the appropriate answer:
The unicellular organism causing malaria
Write one difference between the following pair:
Porifera and Coelenterata.
Fill in the blank.
........................... are considered as farmers’ friend of farmers.
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Some .....................have two pairs of legs per segment.
Select the most appropriate answer.
The body temperature of warm-blooded animals
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 |
Find the odd one out. Give reason.
ant, cockroach, spider, dragonfly
Write a short answer.
What are invertebrates ?
Write a short answer.
What do you mean by the radially symmetrical body?
Answer in detail.
How do fish exchange gases?
Answer in detail.
How are the bones of birds different from those of other vertebrates?
Classify the given animals into different categories indicated.
Jellyfish, liver fluke, pinworm, Ascaris, tapeworm, Hydra, sea anemone into cnidarians, Platyhelminthes, and Nemathelminthes.
Give any one difference between protozoa and Metazoa.
Which group of animals have following characteristics: Body segmented, jointed appendages and compound eyes.
On the basis of characteristics given below, name the phyla: Unicellular, microscopic animals.
Which one is the most striking or (common) character of the vertebrates?
Which is not a feature of chordates?
Mammals have four-chambered Hearts.
What is the sub-phylum of prochordates?
On the basis of the position of the notochord, classify the different prochordates. Justify your answer.
