Why do we , and nearly all animals and birds have two nostrils ? 170 viewsJanuary 1, 2024 Question99.84K October 26, 2022 0 Comments Why do we , and nearly all animals and birds have two nostrils ? In: 56 9 Answers ActiveNewestOldest Anonymous Posted October 26, 2022 0 Comments A) Bilateral symetry caught on very early in animal evolution, so most external shapes are reflected on animal bodies. B) There is little to no selective pressure for a more complex structure that would create more nostrils. You are viewing 1 out of 9 answers, click here to view all answers. Register or Login
Latest Answers