Which of the following is present in the centre of a flower?
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What marks the onset of puberty in females?
Which part of the human reproductive system helps the embryo get its nutrition from the mother's blood?
Which among the following is respiratory pigment in human beings?
Oxygenated blood flows out of the heart through the _____ .
Which of the following animal is not triploblastic?
Cholesterol is synthesized by the body mainly in the
How many bones does a new born human baby have?