What type of digestion takes place inside the mouth?
A) Absorption only
B) Chemical digestion only
C) Ingestion only
D) Mechanical and chemical digestion
E) Mechanical digestion only
D
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Cyanobacteria such as Synechococcus and Prochlorococcus are predominate members of the phytoplankton in illuminated surface waters.
Answer the following statement true (T) or false (F)
What characterizes terrestrial tetrapods?
A. Lives on land, has four limbs B. Lives in the water, has four limbs C. Lives on land, has four cranial nerves D. Lives on land, has four sets of chromosomes
The classification of prokaryotes in Bergey's Manual of Systematic Bacteriology is largely based on
A) Gram stain reaction. B) habitat. C) type of electron receptor used in cellular respiration. D) rRNA sequences. E) cellular morphology.
Opportunistic infections typical of AIDS but rare otherwise include
A) tuberculosis. B) Pneumocystis pneumonia. C) Kaposi's sarcoma. D) tuberculosis and shingles. E) Pneumocystis pneumonia and Kaposi's sarcoma.