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Sex Pili
Hair-like appendages on the surface of bacteria used to transfer genetic material between cells during conjugation.
Exogenous DNA
DNA that originates outside an organism and can be introduced through viruses, horizontal gene transfer, or genetic engineering.
Spiracles
Small openings on the surface of some animals, especially insects, used for breathing.
Oxygen
A chemical element with the symbol O and atomic number 8, essential for most life forms on Earth as it is a key component of the respiratory processes of most living cells.
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