Examlex
Which of the following is NOT an anatomical change that would be associated with a transition from four to two legs?
Excretion
The process of eliminating waste products of metabolism and other non-useful materials from an organism's body.
Secretions
Substances produced and released by cells or glands in the body, which serve a variety of functions including lubrication, digestion, and defense.
Bleeding
The loss of blood from the circulatory system due to injury or illness.
Bacterial Infection
Occurs when harmful bacteria enter a host organism, multiply, and produce damaging effects on the host's tissues or organ systems.
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