Aerobic respiration became established as a result of
the evolution of
a. the first proto-cells.
b. the first true cells.
c. metabolism.
d. the cyclic pathway of photosynthesis.
e. the noncyclic pathway of photosynthesis.
Answer: e
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The diversity of genome type and the overall number of bacteriophage that infect Escherichia coli is numerous, but many other bacterial taxa that thrive in the environment are likely infected by a variety of phage as well
Indicate whether the statement is true or false.
In agarose gel electrophoresis, DNA molecules move towards the ____ pole because they ____
a. positive; are negatively charged
b. negative; are positively charged c. bottom; are pulled by a magnetic force d. bottom; are pulled by gravity e. bottom; have a greater density than the gel
AIDS stands for ____
a. Acquired Immune Deficiency Syndrome b. Accelerated Immune Death Syndrome c. Accentuated Induced Deficiency Syndrome d. Advantageous Immunity Deficiency Syndrome e. Acquired Immuno Defense Syndrome
Cells are genetically programmed to die, responding to cell signals that can come from outside or inside the cell. This process is called necrosis and is a normal way to regulate cell numbers during fetal development and within tissues and organs after birth
a. true b. false