- 1(current)
Q. No.Which one of the following pairs of items correctly belong to the category of organs mentioned against it?
| 1. | Nephridia of earthworm and malpighian tubules of cockroach - excretory organs. |
| 2. | Wings of honey bee and wings of crow - homologous organs |
| 3. | Thorns of Bougainvilea and tendrils of Cucurbita - analogous organs |
| 4. | Nictitating membrane and blind spot in human eye - vestigial organs |
Subtopic: Phylum Annelida | Phylum Arthropoda |
77%
Level 2: 60%+
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Metameric segmentation is the characteristic of
| 1. | Mollusca and chordata |
| 2. | Platyhelminthes and arthropoda |
| 3. | Echinodermata and annelida |
| 4. | Annelida and arthropoda |
Subtopic: Phylum Annelida | Phylum Arthropoda |
82%
Level 1: 80%+
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Which one of the following statements about all the four - Spongilla, Leech, Dolphin, Penguin - is correct?
| 1. | Leech is a freshwater form while all others are marine. |
| 2. | Spongilla has special collar cells called choanocytes, not found in the remaining three. |
| 3. | All are bilaterally symmetrical. |
| 4. | Penguin is homeothermic while the remaining three are poikilothermic. |
Subtopic: Phylum Porifera | Phylum Annelida | Study of Aves & Mammals |
82%
Level 1: 80%+
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Which of the following options does correctly represent the characteristic features of phylum Annelida?
| 1. | Triploblastic, unsegmented body, and bilaterally symmetrical. |
| 2. | Triploblastic, a segmented body, and bilaterally symmetrical. |
| 3. | Triploblastic, flattened body, and acoelomate condition. |
| 4. | Diploblastic, mostly marine and radially symmetrical. |
Subtopic: Phylum Annelida |
86%
Level 1: 80%+
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Match List - I with List - II
| List - I | List - II | ||
| (a) | Metamerism | (i) | Coelenterata |
| (b) | Canal system | (ii) | Ctenophora |
| (c) | Comb Plates | (iii) | Annelida |
| (d) | Cnidoblasts | (iv) | Porifera |
Choose the correct answer from the options given below.
| (a) | (b) | (c) | (d) | |
| 1. | (iii) | (iv) | (ii) | (i) |
| 2. | (iv) | (i) | (ii) | (iii) |
| 3. | (iv) | (iii) | (i) | (ii) |
| 4. | (iii) | (iv) | (i) | (ii) |
Subtopic: Phylum Porifera | Phylum Coelenterata | Phylum Ctenophora | Phylum Annelida |
87%
Level 1: 80%+
NEET - 2021
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- 1(current)
Q. No.
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