MCQ
In Barley stem, vascular bundles are:
- AClosed and radial
- BOpen and scattered
- COpen and in a ring
- DClosed and scattered
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| Column $- I$ | Column $- II$ |
| $(1)$ Marginal | $(p)$ Argemone |
| $(2)$ Axile | $(q)$ Dianthus |
| $(3)$ Parietal | $(r)$ Pea |
| $(4)$ Free central | $(s)$ Lemon |
Evolutionary biologists believe that the 'success' of mammals is largely due to their ability to maintain a constant body ...$D$... and thrive whether they live in Antarctica or in the Sahara desert
Choose the correct option for $A , B , C$ and $D$