MCQ
$'Taxa'$ differs from $'taxon'$ due to being
- Aa higher taxonomic category than taxon.
- Blower taxonomic category than taxon.
- ✓the plural of taxon.
- Dthe singular of taxon.
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Statement $I$: In $\mathrm{C}_3$ plants, some $\mathrm{O}_2$ binds to $\mathrm{RuBisCO}$, hence $\mathrm{CO}_2$ fixation is decreased.
Statement $II$: In $\mathrm{C}_4$ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements, choose the correct answer from the options given below:
| List $I$ | List $I$ |
| $A$ Exophthalmic goiter | $I$ Excess secretion of cortisol, moon face hypergylcemia. |
| $B$ Acromegaly | $II$ Hypo-secretion of thyroid hormone and stunted growth. |
| $C$ Cushing's syndrome | $III$ Hyper secretion of thyroid hormone protruding eye balls. |
| $D$ Cretinism | $IV$ Excessive secretion of growth hormone. |