Answer:
Conjugative Pili
Explanation:
Conjugative Pilli:allows for the transfer of DNA between bacteria, in the process of bacterial conjugation.
It is gotten from the atmosphere by respiration, burning of fossil fuel, decay, excretion and decomposition of organic matter, fossilization etc
Biotic would mean living so fish and sea plants
The forelimbs of all mammals are homologous traits, meaning that they originate from a common ancestral trait.
The correct answer is therefore C. Homologies (homologous traits), from the same common ancestor.
(To clarify, we know it is from a common ancestor because both bats and humans are mammals)
