Which are the special proteins in muscles that contract and relax to cause movement?
Which part of the human reproductive system helps the embryo get its nutrition from the mother's blood?
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The universal natural auxin of plants is
Anaemic condition is due to
Which organ is not a gland?
Yellow fever is mainly transmitted among humans by
Slow-growing large coloured patches on the bark of trees are the examples of symbiotic life forms called ______.
Blood is a connective tissue embedded in which type of intercellular matrix?
Identify an example of a connective tissue in humans.