Cell Structure and Compartments
An organism's first line of defense against attack by an invader such as a virus or bacterium is usually

a nonspecific immune response
a specific immune response
its body wall
to flee or hide

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Cell Structure and Compartments
Which of the following statements about prokaryotes is false?

Prokaryotic cells concentrate important materials for the cells survival
Prokaryotic cells are much smaller than most eukaryotic cells
Ancient prokaryotes may have given rise to some eukaryotic organelles
The substance known as cytosol is found within the bacterial nucleus

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