MCQ
Heart in amphibians is
- ATwo-chambered with one auricle and one ventricle
- ✓Three-chambered with two auricles and one ventricle
- CThree-chambered with one auricle and two ventricles
- DFour-chambered with two auricles and two ventricles
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| $a.$ | Pineal | $i.$ | Epinephrine |
| $b.$ | Thyroid | $ii.$ | Melatonin |
| $c.$ | Ovary | $iii.$ | Estrogen |
| $d.$ | Adrenal medulla | $iv.$ | Tetraiodothyronine |
| Column $I$ | Column $II$ | ||
| $A.$ | Aleurone layer | $i.$ | without fertilization |
| $B.$ | Parthenocarpic fruit | $ii.$ | Nutrition |
| $C.$ | Ovule | $iii.$ | Double fertilization |
| $D.$ | Endosperm | $iv.$ | Seed |
$R$ : It is rich in protein granules.