Hair occurs on all mammals except Cetacea
Hope this helps :)
Anything that is considered alive must exhibit ALL 7 characteristics of life. A virus may show some characteristics, but it does not show all, so therefore, its not alive.
Answer:
Answer D
Explanation:
improved water habitats for human recreation
Sweat glands. :)
Perspiration leaves the body through the sweat glands.
To show he presence of a trait you would need to follow it through multiple generations in a pedigree.
