Levels of Organization in the Body

What does the 'levels of organization' mean?

• The body has layers of features and processes which build on each other to carry out a certain function.

• The body is a single unit with no hierarchical structure.

• The body has random features that do not interact with each other.

• The body is organized in a linear fashion without any complexity.

Which of the following best describes the body's organization?

• Random and unstructured

• Linear and simple

• Highly organized and hierarchical

• Disorganized and complex

What does the body's hierarchical organization start with and lead to?

• Starts with complex organs and leads to simple cells

• Starts with simple cells and leads to the complexity of a whole organism

• Starts with tissues and leads to organ systems

• Starts with organ systems and leads to tissues

Which of the following best describes the interaction of features and processes in the body?

• They function independently.

• They build on each other to carry out a certain function.

• They are randomly distributed.

• They do not interact.

What is the primary function of a cell in an organism?

• To act as the largest unit of life

• To serve as the smallest unit of life

• To function as a type of organ

• To be a type of tissue

Which of the following best describes a cell?

• A large unit of life

• A small unit of life

• The smallest unit of life

• A type of organ

What is the smallest unit of life?

• Atom

• Molecule

• Cell

• Tissue

What is the smallest unit of life that makes up tissues?

• Atom

• Molecule

• Cell

• Organ

Which of the following is NOT one of the four types of tissue?

• Epithelial

• Connective

• Bone

• Muscle

Which type of tissue is involved in the contraction and relaxation of muscles?

• Connective

• Epithelial

• Nerve

• Muscle