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प्रश्न
Give any one difference between the following :
Flatworm and Roundworm
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उत्तर
|
Flatworm |
Roundworm |
|
Dorso-ventrally flattened |
Cylindrical in shape and are tapered at both ends |
संबंधित प्रश्न
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 Annelida.
Write down four general characters of phylum Arthropoda. Give two examples.
Give four general characters of phylum Mollusca. Write down two examples.
Describe some flight adaptations of the birds.
Write down four general characters of Porifera. Give two examples.
Write two main characters of the following animal and name the phylum it belongs to: Jelly fish
Give two examples of each of the following: Annelida
Choose the correct answer: Jelly-fish is classified in the phylum
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:
