Question 2

Groups of like cells are called tissue.

Tissue refers to groups of similar cells that work together to perform a specific function in the body. This classification is fundamental in biology and anatomy, highlighting the organization of cells into functional units.

A) Membrane

Membranes are structures that separate different environments or compartments within an organism, such as cell membranes or mucous membranes. They do not refer to groups of cells, making this option incorrect.

B) System

A system consists of multiple organs working together to perform complex functions, such as the circulatory or nervous system. While systems are made up of tissues and organs, they do not specifically denote groups of like cells, thus rendering this option incorrect.

C) Organ

An organ is a structure composed of different types of tissues working together to perform specific functions, such as the heart or liver. While organs are indeed formed from tissues, the term does not refer directly to groups of like cells, making this option incorrect.

D) Tissue

Tissue is defined as a group of similar cells that carry out a specific function within an organism. This is the most accurate and direct answer to the question about groups of like cells, confirming its correctness.

Conclusion

Tissue is the correct term for groups of like cells, emphasizing the organization and specialization of cells in biological systems. The other options—membrane, system, and organ—fail to accurately define this concept, as they pertain to different levels of biological organization or function.