Human Body Systems

Front

What is the highest level of organization in living organisms?

Back

Organism

Front

How many bones are there in an adult human body?

Back

206

Front

Which organelle is responsible for converting sunlight into energy in plants?

Back

Chloroplasts

Front

What level of organization is made up of many cells working together?

Back

Tissue

Front

According to cell theory, where do cells come from?

Back

Preexisting cells

Front

What is the basic unit of life?

Back

Cell

Front

What is the function of mitochondria in cells?

Back

To convert food into energy (ATP).

Front

What is the role of the circulatory system?

Back

To transport blood, nutrients, and oxygen throughout the body.

Front

What is the primary function of the respiratory system?

Back

To exchange gases (oxygen and carbon dioxide) between the body and the environment.

Front

What is homeostasis?

Back

The process by which the body maintains a stable internal environment.