er:
Explanation:
In the lungs CO2 is removed from the blood and send out the body where we exhale
Vestigial structures are often homologous to structures that are functioning normally in other species. Therefore, vestigial structures can be considered the evidence for evolution, the process by which beneficial heritable traits arise in populations over an extended period of time.
... increase their chances of displaying this said attribute in higher incidence and frequency
Umm bruhh did u mean implantation?
But if u did the answer to your question is implantation.
Good
