Answer - Organogenesis
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Conjugation is the direct transfer of DNA from one bacterium to another.
Bacteria can exchange genetic information through three different mechanisms; conjugation, transduction, and transformation. Bacterial conjugation involves the transfer of a plasmid from one bacterium to the other, through cell-to-cell contact. Bacterial transduction is performed through bacteriophages. Bacterial transformation refers to the process of moving genetic elements to various positions of the genome.
B. Keratin
Even our nails are made up of it
The top, with the least amount of energy available, because the higher up the pyramid you go the less energy is transferred. <span />