Which type of cell, skin is made up of:
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Among plants, three different genera Solanum, Petunia and Datura are placed in which family?
___________ being a higher category, is the assemblage of families which exhibit a few similar characters.
Which of the following is secreted by the liver?
Why do the desert plants take up the carbon dioxide for photosynthesis at night?
Which of the following is not a function of blood?
Which of the following protects the inner lining of the stomach from the action of the hydrochloric acid under the normal conditions?
Which of the following induces nitrogen fixation in soil?