| 1. | They are found in aquatic habitats and on decaying wood in moist and damp places or as obligate parasites on plants. | 
| 2. | The mycelium is septate and coenocytic. | 
| 3. | Asexual reproduction takes place by zoospores (motile) or by aplanospores (non-motile). | 
| 4. | A zygospore is formed by fusion of two gametes. | 
| 1. | Rhizopus | 2. | Aspergillus | 
| 3. | Neurospora | 4. | Claviceps | 
| Assertion (A): | Dueteromycetes are known as imperfect fungi. | 
| Reason (R): | Only their asexual and vegetative phases are known. | 
| 1. | Both (A) and (R) are True and (R) explains (A) | 
| 2. | Both (A) and (R) are True and (R) does not explain (A) | 
| 3. | (A) is True but (R) is False | 
| 4. | (A) is False but (R) is True | 
| 1. | a fungus that lives on dead or decaying organic matter. | 
| 2. | a fungus that parasitizes on an animal body. | 
| 3. | is a symbiotic association between a fungus and a plant. | 
| 4. | is a symbiotic association between a fungus and a cyanobacterium | 
| 1. | They are most abundant bacteria in nature. | 
| 2. | The majority are important decomposers. | 
| 3. | None of them is capable of fixing atmospheric nitrogen. | 
| 4. | Some are pathogens causing damage to human beings, crops, farm animals and pets. | 
| 1. | Bacillus | 2. | Coccus | 
| 3. | Spirillum | 4. | Vibrios |