Levels of Organization and Body Systems

Front

What is the function of the nucleus in a eukaryotic cell?

Back

The nucleus stores the DNA and controls the cell's activities.

Front

What type of cells contain a nucleus?

Back

Eukaryotic cells.

Front

Define a cell in biological terms.

Back

A cell is the basic unit of life.

Front

What is a tissue?

Back

A tissue is a group of cells that work together to perform a specific function.

Front

What are the four main types of tissues in the human body?

Back

Epithelial, connective, muscle, and nervous tissues.

Front

What system is responsible for detecting environmental information?

Back

The nervous system.

Front

What is the primary function of the digestive system?

Back

To break down food and absorb nutrients.

Front

What level of organization is represented by the stomach?

Back

The stomach is an organ.

Front

What is the difference between an organ and an organ system?

Back

An organ is a structure made up of tissues that performs a specific function, while an organ system is a group of organs that work together to perform complex functions.

Front

Name the levels of organization in biological systems from simplest to most complex.

Back

Cell, tissue, organ, organ system, organism.