What are histogenesis and organogenesis
What are histogenesis and organogenesis?
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Histogenesis is the procedure of tissue formation in the embryonic growth. Organogenesis is the procedure of organ formation. Prior to histogenesis and organogenesis the primitive embryonic structures have been already made: neural tube, germ layers, notochord, coeloms, and somites.
How male gametophytes and male gametes formed in the angiosperms?
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Define attenuation? Briefly explain it.
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