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प्रश्न
How do annelid animals differ from arthropods?
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उत्तर
| Annelids | Arthropods | |
| 1. | The circulatory system of annelids is closed. | Arthropods have an open circulatory system. |
| 2. | The body is divided into several identical segments. | The body is divided into few specialized segments. |
संबंधित प्रश्न
What are the differences between amphibians and reptiles?
What are the difficulties that you would face in classification of animals, if common fundamental features are not taken into account?
Match the following:
| Column I | Column II | ||
| (a) | Operculum | (i) | Ctenophora |
| (b) | Parapodia | (ii) | Mollusca |
| (c) | Scales | (iii) | Porifera |
| (d) | Comb plates | (iv) | Reptilia |
| (e) | Radula | (v) | Annelida |
| (f) | Hairs | (vi) | Cyclostomata and Chondrichthyes |
| (g) | Choanocytes | (vii) | Mammalia |
| (h) | Gill slits | (viii) | Osteichthyes |
Write down four main characters of Platyhelminthes. Give two examples.
Give four general characters of phylum Mollusca. Write down two examples.
Name the phylum in which ambulacral system is present. What is its function?
Write down four characters of Osteichtyes and give two examples.
Distinguish between Nonchordata and Chordata.
Write down four general characters of Porifera. Give two examples.
Give any one difference between the following :
Flatworm and Roundworm
Write two main characters of the following animal and name the phylum it belongs to: Whale
Give two examples of each of the following: Pisces
Give two examples of each of the following: Arthropoda
Fill in the blanks:
Dog fish belongs to phylum ______.
Choose the correct answer: Jelly-fish is classified in the phylum
Choose the correct answer: The animal of phylum mollusca is
Assertion: Binomial name is the universal name and contains two names.
Reason: It was first introduced by Carolus Linnaeus
Write short notes on – Binomial Nomenclature.
Assertion (A): Reptiles are warm-blooded animals.
Reason (R): They have scales.
Assertion (A): All vertebrates are chordates but all chordates are not vertebrate.
Reason (R): The members of subphylum vertebrata possess notochord, during the embryonic period, the notochord is replaced by a cartilaginous or bony vertebral column in adults.
In the light of the above statements, choose the correct answer from the options given below:
