Examlex
In free-living flatworms, which of the following functions occurs by simple diffusion?
Catastrophe
A sudden and widespread disaster that causes great damage or suffering.
Trauma
A deeply distressing or disturbing experience that can have long-lasting psychological effects.
Macrophage
A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process known as phagocytosis.
Immune System
A complex network of cells, tissues, and organs that work together to defend the body against harmful pathogens and diseases.
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