Answer:Institutional Animal Care and Use Committees ( IACUC).
Explanation: it was formally introduced in 1986 with an amendment to the Animal Welfare Act and corresponding changes in U. S. public health service policy. It is the committee that investigates researcher to know if they are properly trained to perform animal procedures, as required by law.
The angle of jaw and type of teeth in each jaw are the main big differences.
I am guessing an Ecological Relationship as it is dependent on it's environment
DNA I’m not sure if im right sorry if im wrong
