A gene is a region of DNA that codes for a specific protein or RNA molecule.

Evolution is the process by which organisms change over time, resulting in the diversity of life on Earth.

Commensalism is a relationship between two organisms in which one benefits and the other is unaffected.

The skin is the largest organ in the human body, covering an area of approximately 20 square feet.

Photosynthesis is the process by which plants convert sunlight into energy, using chlorophyll and carbon dioxide to produce glucose and oxygen.

The scientific name for the common cold is Rhinovirus, which is a type of virus that causes respiratory infections.

Mitosis is the process by which cells divide to produce two identical daughter cells.

Messenger RNA (mRNA) carries genetic information from DNA to the ribosome, where it is used to direct protein synthesis.

Ecology is the study of the interactions between organisms and their environment.

Asexual reproduction is the process by which organisms produce offspring that are genetically similar to themselves.

Adaptation is the process by which organisms respond to changes in their environment.

DNA is the molecule that stores genetic information in cells.

Cellular respiration is the process by which organisms obtain energy from food.

The integumentary system regulates the body's temperature.

Decomposition is the process by which organisms break down organic matter into simpler substances.