AP BIOLOGY

Detailed explanation-1: -Tissues are groups of similar cells that are specialised to perform specific functions.

Detailed explanation-2: -Living things have specialized structures with specialized functions. Living things with more than one cell have a greater level of organization because groups of cells function together. Living things grow by increasing cell size and/or increasing cell number.

Detailed explanation-3: -Specialized cells perform specialized functions in multicellular organisms. Groups of specialized cells cooperate to form a tissue, such as a muscle. Different tissues are in turn grouped together to form larger functional units, called organs.

Detailed explanation-4: -This means that they’re designed differently so that they can perform different functions. For example, your muscle cells have a very different function than your nerve cells, just like your heart cells are different from your liver cells for the same reason.