Amount of wear, and how long they are may contribute with age and maybe even coloration and pigment.
Answer:
Homologous
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.
Cancer and Tumors...
........ Hope it helps, Have a good rest of the day:)
The last three are correct
