070 What is a disease?

In this episode of Interactive Biology, Leslie Samuel explores the concept of disease from a biological perspective. He defines a disease as an abnormal condition affecting an organism, particularly humans, and explains how it impacts the body's organ systems, organs, tissues, and cells. The episode breaks down the structure of the human body, emphasizing the cellular level where diseases manifest. Leslie introduces the idea that all diseases can be attributed to one of five causes, which will be discussed in the next episode. The video concludes with an invitation to explore more resources on the Interactive Biology website.

What is a disease from a biological perspective?

• An abnormal condition affecting an organism

• A condition with no symptoms

• A normal condition affecting an organism

• A condition that only affects animals

Which of the following is NOT an organ system in the human body?

• Skeletal system

• Muscular system

• Circulatory system

• Digestive system

What is the basic unit that makes up tissues?

• Organs

• Cells

• Systems

• Organisms

What is the relationship between organs and tissues?

• Organs are made up of tissues

• Tissues are made up of organs

• Organs and tissues are the same

• Tissues are larger than organs

How many causes of diseases will be discussed in the next episode?

• Six

• Three

• Four

• Five