Answer:
Hey there!
A warning safety sign is a sign that warns you that there may be a safety hazard around you.
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They are called "products".
1.) eating an apple because it is gaining energy from eating the apple
2.) communicate verbally. That doesn’t help them survive when it comes to the organism itself
3.) True, to maintain structure you must stay healthy
4.) A, because they are healing the part where the structure was damaged.
5.) B, because cells have distinct structures and set of functions.