Question

1. what is a group of similar cells working together called?

○ organ
○ tissue
○ organism
○ population

Explanation:

To solve this, we recall biological organizational levels:

• An organ is made of multiple tissues.
• A tissue is a group of similar cells working together (e.g., muscle tissue has muscle cells).
• An organism is a whole living entity.
• A population is a group of organisms of the same species. So the correct term for similar cells working together is tissue.

Answer:

B. Tissue (assuming the options are labeled as A. Organ, B. Tissue, C. Organism, D. Population; if labels differ, adjust to the option with "Tissue" text)