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The correct answer is D
_______is a pure substance.
Animals like annelids and arthropods, where the body can be divided into identical left and right halves in only one plane, exhibit which type of symmetry?
Decomposition is affected by:
Which of the statements given below are correct?
1. A person having blood group 'A' can donate blood to persons having blood group 'A' and bloo...
The normal pH of human blood is approximately:
In roots, the protoxylem lies towards the periphery and the metaxylem towards the center. This arrangement of primary xylem is called ____________.
Who performed experiments on Vicia faba to prove that the DNA replicates semi-conservatively ?
Pellagra is caused by the deficiency of which vitamin?
Amino acid is attached to which site of tRNA ?