What event could disrupt one or more body systems?

An event that could disrupt one or more body systems is a HEAD TRAUMA. When we say head trauma, this is an injury which affects the scalp, the skull or even the brain. When the brain is greatly affected, all of the other systems in the body would not function well since it is the brain is the center of the coordination of the systems. Hope this answer helps.

The correct answer would be b

That is true tge cactus as a structural adaptation to its envirinment has it leaves reduced to spines. but this doesnt mean it cant produce food it produces food because of the presence of chlorophyll in its stem