MCQ
The main sources of biofertilisers are
- ABacteria
- BCyanobacteria
- CFungi
- ✓All of these
Fungi act as biofertilizer as they help in absoprtion of water and minerals specially Phosphorous by associating with roots of higher plants and forming Mycorrhiza.
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Statement $2$: Amniocentesis is meant for determining the genetic disorders in the foetus, but it is being used to determine the sex of the foetus, to kill the normal female foetus
| Column $- I$ | Column $- II$ |
| $(A)$ Physiological barrier | $(1)$ Skin |
| $(B)$ Cellular barrier | $(2)$ Macrophages |
| $(C)$ Physical barriers | $(3)$ interferons |
| $(D)$ Cytokine barriers | $(4)$ Tears |
| $(5)$ Mucus |

