The contrasting characteristics generally in a pair used for identification of animals in Taxonomic Key are referred to as :
| 1. | Lead | 2. | Couplet |
| 3. | Doublet | 4. | Alternate |
Which of the following is against the rules of ICBN?
1. Hand written scientific names should be underlined.
2. Every species should have a generic name and a specific epithet.
3. Scientific names are in Latin and should be italized.
4. Generic and specific names should be written starting with small letters.
Which of the following statements is correct?
1. Lichens do not grow in polluted areas.
2. Algal component of lichens is called mycobiont.
3. Fungal component of lichens is called phycobiont.
4. Lichens are not good pollution indicators.
Match the organisms in column I with habitats in column II.
| Column I | Column II | ||
| (a) | Halophiles | (i) | Hot springs |
| (b) | Thermoacidophiles | (ii) | Aquatic environment |
| (c) | Methanogens | (iii) | Guts of ruminants |
| (d) | Cyanobacteria | (iv) | Salty areas |
Select the correct answer from the options given below:
| (a) | (b) | (c) | (d) | |
| 1. | (iv) | (i) | (iii) | (ii) |
| 2. | (i) | (ii) | (iii) | (iv) |
| 3. | (iii) | (iv) | (i) | (ii) |
| 4. | (ii) | (iv) | (iii) | (i) |
Which is the most common type of embryo sac in angiosperms?
1. Tetrasporic with one mitotic stage of divisions
2. Monosporic with three sequential mitotic divisions
3. Monosporic with two sequential mitotic divisions
4. Bisporic with two sequential mitotic divisions
Match the following genera with their respective phylum :
| (a) | Ophiura | (i) | Mollusca |
| (b) | Physalia | (ii) | Platyhelminthes |
| (c) | Pinctada | (iii) | Echinodermata |
| (d) | Planaria | (iv) | Coelenterata |
Select the correct option :
| 1. | (a)-(iv), (b)-(i), (c)-(iii), (d)-(ii) |
| 2. | (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii) |
| 3. | (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii) |
| 4. | (a)-(iii), (b)-(iv), (c)-(ii), (d)-(i) |
Which of the following animals are true coelomates with bilateral symmetry ?
1. Adult Echinoderms
2. Aschelminthes
3. Platyhelminthes
4. Annelids
Regeneration of damaged growing grass following grazing is largely due to :
1. Lateral meristem
2. Apical meristem
3. Intercalary meristem
4. Secondary meristem
Bicarpellary ovary with obliquely placed septum is seen in :
1. Brassica
2. Aloe
3. Solanum
4. Sesbania
Match the placental types (column-I) with their examples (column-II)
Column I Column II
(a) Basal (i) Mustard
(b) Axile (ii) China rose
(c) Parietal (iii) Dianthus
(d) Free central (iv) Sunflower
Choose the correct answer from the following options:
1. (a)-(ii), (b)-(iii),(c)-(iv), (d)-(i)
2. (a)-(i), (b)-(ii), (c)-(iii), (d)-(iv)
3. (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
4. (a)-(iii), (b)-(iv), (c)-(i), (d)-(ii)
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