The statement above is TRUE. Puncture wounds refers to an injury that is caused by piercing of skin; a small hole is usually present. Puncture wounds do not usually bleed excessively but most times tissues and skin are crushed. Punctured wound can be superficial or deep.
A closed system is a system that makes no physical or chemical exchanges with its environment. Of these systems provided as choices (tree, human, clock, car), only a clock does not make exchanges with the environment, except for energy.
Therefore, of that list, only a clock would be a closed system.
Hope that helped! =)
Chemical energy through the process of photosynthesis.
Answer:
I think its the nucliolus
Explanation:
