Which of the following can be used as electron acceptors during anaerobic respiration?
A. Carbon dioxide
B. Sulfate
C. Nitrate
D. All of the choices are correct.
Answer: D
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Unlike members of the Bacteria, most archaeans have linear chromosomes.
Answer the following statement true (T) or false (F)
White blood cells that engulf a microorganism and then explode their contents, creating a net that traps and kills
pathogens are known as ____.
a. neutrophils b. macrophages c. B lymphocytes d. dendritic cells e. eosinophils
Under the biological species concept, what criterion is used to assign populations of organisms to the same biological species?
A) a very similar appearance B) being able to interbreed and produce fertile offspring C) responding to the environment in the same way D) having 99% of their genes in common
The movement of sucrose and H+ into the cell by the same membrane protein reflects the actions of what type of transporter?
A. symporter B. mechanosensitive channel C. voltage-gated channel D. antiporter E. uniporter