Q. No.
Phylogenetic classification is based on:
| 1. | Morphological similarities | 2. | Physiological similarities |
| 3. | Reproductive similarities | 4. | Evolutionary relationships |
The body of Euglenoids is flexible because of presence of:
| 1. | a cell wall made up of pseudopeptidoglycan |
| 2. | a protein rich pellicle and absence of cell wall |
| 3. | a phosphate ether bonding in phospholipids in cell membrane |
| 4. | lipopolysaccharide layer in the outer cell wall |
Which of the following is not a viral disease?
| 1. | Influenza | 2. | Yellow fever |
| 3. | Japanese encephalitis | 4. | Kala azar |
As a group the most extensive metabolic diversity is shown by:
| 1. | Bacteria | 2. | Protista |
| 3. | Fungi | 4. | Animals |
Halophiles are archaebacteria adapted to extreme:
| 1. | Hot habitats | 2. | Saline habitats |
| 3. | Marshy habitats | 4. | Cold habitats |
Methanogens are commonly present in:
1. Alimentary canal of the lower invertebrates
2. Symbiotic relationships with xerophytic plants
3. Gut of ruminant animals
4. Close associations with corals
Consider the following regarding the reasons for the fact that now Cyanobacteria are kept in Monera and not in Plantae:
I. They are prokaryotes.
II. The cell wall of cyanobacteria has peptidoglycan.
III. They can fix atmospheric nitrogen.
The correct explanations would be:
1. I and II only
2. I and III only
3. II and III only
4. I, II and III
Identify the incorrect statement regarding cyanobacteria:
1. They have chlorophyll a similar to green plants
2. Colonies surrounded by pellicle – a protein rich layer
3. Often form blooms in polluted water bodies
4. Fix nitrogen in specialized cells called hetrocysts
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