Answer: The answer I got was Penicillin!
Explanation:
I know that marine biotechnology has came out with other antibiotics including squalamine and cephalosporin. This is an educated guess but based on the other answer choices Penicillin sounds more reasonable!!
Since homologous means same structure different functions, it shows that animals evolve to have the same structure as their ancestors but, have different uses to the part
Ventilation is the act of moving/pushing air into and out of the lungs.