Disease refers to any condition that impairs the normal functioning of an organism. It can be caused by various factors including pathogens such as bacteria, viruses, fungi, and parasites, as well as non-infectious factors such as genetics, environmental pollution, and lifestyle choices.
Types of Diseases
There are different types of diseases:
Infectious diseases: These are caused by pathogens and can be spread from person to person, or from animals to people. Examples include the flu, tuberculosis, and HIV/AIDS.
Non-infectious diseases: These are not caused by pathogens and are typically related to genetics, lifestyle, and environmental factors. Examples include diabetes, heart disease, and cancer.
The student demonstrates an understanding of the structure, function, behavior, development, life cycles, and diversity of living organisms by identifying and sorting animals into groups using basic external and internal features.