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If we are to measure the length of blood vessels in our body, how many kilometres would it add up to?
If xylem & phloem are arranged in the same radius, such a vascular bundle is called:
Important plant diseases like fire-blight and crown all are caused by
Impulses from the pace–maker cause the
In _ cells the genetic material is without any nuclear membrane covering and is directly submerged in the cytoplasm.
In a cymose type of inflorescence, the growth of the main axis terminates in a
In a dihybrid cross between AABB and aabb the ratio of AABB, AABb, aaBb, aabb in F2 generation is
In a food chain, the solar energy utilized by plants is only
In a human body, the longest bone is in the
In a mammal, lymphatic vessels possess