Which feature helped define the evolution of the primate lineage?
a. The face became flattened and the eyes became forward facing
b. Skeletal changes allowed for upright walking.
c. The hands became adapted for new tasks.
d. All of these are unique features to the primate lineage.
e. The teeth became less specialized.
d
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If a human is deprived of oxygen due to trauma or injury, why is the brain the first area of concern? Check all that apply.
_____ Because the heart can use glycerol and fatty acids as energy sources during the postabsorptive period. _____ Because the skeletal muscles can use glycerol and fatty acids as energy sources during the postabsorptive period. _____ Because we cannot function without the brain. _____ Because the byproducts of the use of glycerol and fatty acids as energy sources during the postabsorptive period by the brain are toxic.
What other information is related to the question? Which information is most useful?
What will be an ideal response?
Sexual reproduction introduces more genetic variation than does asexual reproduction.
Answer the following statement true (T) or false (F)
A heterotrophic, unicellular, eukaryotic cell is
A. Alga. B. Bacterium. C. Archeon. D. Protozoan.