Question

a group of similar cells working together and performing specific functions is a(n) ______. answer options: organ system, organism, organ, tissue, i dont know yet

Explanation:

To solve this, we recall the biological organization levels:

• Organ system: Group of organs working together.
• Organism: Entire living being.
• Organ: Group of tissues working together.
• Tissue: Group of similar cells with a specific function.

The question describes a group of similar cells working together, which matches the definition of tissue.

Answer:

D. tissue