Through cells on the surface of its body and also through the orifice at the top of its head
Answer:
Homologous features
Explanation:
If two or more species share a unique physical feature, such as a complex bone structure or a body plan, they may all have inherited this feature from a common ancestor. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.
reproduction, heredity, variation in fitness or organisms, variation in individual characters among members of the population.
