MCQ
$A$ typical angiosperm anther is _________ and _________.
- ✓Bilobed, tetrasporangiate
- BBilobed, monosporangiate
- CBilobed, bisporangiate
- DTetralobed, monosporangiate
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Reason: Histamine is a vasodilator.
| List $- I$ | List $- II$ |
| $(a)$ Allen's Rule | $(i)$ Kangaroo rat |
| $(b)$ Physiological adaptation | $(ii)$ Desert lizard |
| $(c)$ Behavioural adaptation | $(iii)$ Marine fish at depth |
| $(d)$ Biochemical adaptation | $(iv)$ Polar seal |
Choose the correct answer from the options given below.
$(a) -(b)- (c)- (d)$