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The red blood cells are produced by the
The red colour of human blood is due to
The red, orange and yellow colours of leaf is due to :
The region of the brain that integrates visceral activities, body temperature, and heartbeat is the
The release of the egg/ovum from the ovary is called
The release of Which among the given into ponds & wells helps in controlling mosquitoes -
The resources which are obtained from bio sphere & have life are:
The retention of urea in the blood in the marine environment, as a means to osmoregulate, is best seen in
The RH factor refers to
The richest source of vitamin A is