MCQ
The respiratory organs vary in different animals due to their
- ANutrition
- ✓Habitat and level of organisation
- CExcretion
- DReproduction
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$I.$ Cytokinins suppress the synthesis of chlorophyll.
$II.$ Auxins control apical dominance.
$III.$ Gibberellins promote shoot elongation.
$IV.$ Abscisic acid enabling seeds to withstand desiccation.
Which of the above statements are correct
| $(a)$ Descending limb of Henle's loop | $(i)$ Reabsorption of salts only |
| $(b)$ Proximal Convoluted tubule | $(ii)$ Reabsorption of water only |
| $(c)$ Ascending limb of Henle's loop | $(iii)$ Conditional reabsorption of sodium ion and water |
| $(d)$ Distal convoluted tubule | $(iv)$ Reabsorption of ion, water and organic nutrients |
Select the correct option from the following