In vascular plants, the sieve tubes and companion cells a...
In vascular plants, the sieve tubes and companion cells are present in the
cambium
cortex
xylem
phloem
Correct answer is D
No explanation has been provided for this answer.
If species i, ii, and iii in the diagram interact in a community, which of the following statem...
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An association between the root nodule of a leguminous plant and rhizobium sp, is known as ...
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