Which are the special proteins in muscles that contract and relax to cause movement?
Which one of the following weeds is effective in controlling water pollution caused by industrial effluents?
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The sexual reproductive organs of aspergillus are :
Banana freckle is a plant disease. It is caused by a
Spiders belong to the phylum
Which of the following is a symptom of haemophilia?
Earth-worms belongs to the phylum
Which of the following plants have root nodules?
The outermost layer of skin is