| 1. | mice | 2. | cow |
| 3. | pig | 4. | fish |
1. Rice
2. Maize
3. Mango
4. Groundnut
1. obtain antibiotics
2. purify enzymes
3. degrade sewage
4. produce methane
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?
| 1. | 63 | 2. | 84 |
| 3. | 21 | 4. | 42 |
1. convert free nitrogen to nitrogen compounds
2. convert proteins into ammonia
3. reduce nitrates to free nitrogen
4. oxidize ammonia to nitrates
Mannitol is a sugar alcohol. It is as stored food in:
1. Fucus
2. Gracillaria
3. Chara
4. Porphyra
1. Rhizobium
2. Nostoc
3. Mycorrhiza
4. Agrobacterium
| 1. | Detritus | 2. | Humus |
| 3. | Standing state | 4. | Standing crop |
| 1. | Serum amylase | 2. | A globulin |
| 3. | Fibrinogen | 4. | Albumin |
What type of human population is represented by the following age pyramid?