What is lymph?
A) the layer of lipids that collects under the skin for protection and insulation
B) thick carbohydrate matrix that supports cells in various tissues of the body
C) the portion of blood that contains red blood cells
D) protein-rich blood plasma that has left capillaries
E) the portion of blood that contains white blood cells and platelets
Answer: D
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Which portion of the brain has shown the most dramatic changes in size in the evolution of birds and mammals?
A. hindbrain B. midbrain C. forebrain D. cerebellum E. medulla oblongata
The Na+/K+ pump transports ________ into the cell and ________ out of the cell per cycle.
Fill in the blank(s) with the appropriate word(s).
The production of antibiotics is a form of antagonism called ________.
A. symbiosis B. mutualism C. antibiosis D. synergism
All of the following are important to the theory of evolution EXCEPT
A) variation in traits within an entire population. B) inheritance of traits. C) changes in individuals within their lifetimes. D) environmental change. E) mutations.