MCQ
Minimata disease is caused by :
- ABy Chromium
- BBy Cadmium
- ✓By Methyl mercury
- DBy Radioactive elements
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$(1)$ The trophic levels in $GFC$ are unlimited
$(2)$ Organisms at each trophic level depend on those at the higher trophic level for their energy demands.
$(3)$ Plants capture only $2 -10$ percent of $PAR$.
$(4)$ All organisms are dependent for their food on producers, either directly or indirectly.
| | Bioactive Substance | | Role |
| i. | Statin | a. | Removal of oil stains |
| ii. | Cyclosporin A | b. | Removal of clots from blood vessels |
| iii. | Streptokinase | c. | Lowering of blood cholesterol |
| iv. | Lipase | d. | Immuno-suppressive agent |