Biology Flashcard 4

Front

Define anatomy.

Back

Anatomy is the study of the structure of organisms, including their systems, organs, and tissues.

Front

Define physiology.

Back

Physiology is the study of the functions and processes of the various systems and organs in an organism.

Front

What is the difference between habitat and niche?

Back

Habitat is the physical environment where an organism lives, while niche is the role or function of an organism within its environment.

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is chemosynthesis?

Back

Chemosynthesis is the process by which certain organisms create energy by using chemical reactions, often in the absence of sunlight.

Front

Compare photosynthesis and chemosynthesis.

Back

Both processes convert carbon dioxide into food, but photosynthesis uses sunlight while chemosynthesis uses chemical energy.

Front

Define equinox.

Back

An equinox occurs when day and night are of equal length, typically occurring in March and September.

Front

Define solstice.

Back

A solstice occurs when the sun is at its highest or lowest point in the sky, resulting in the longest or shortest day of the year.

Front

What is the immune system?

Back

The immune system is the body's defense mechanism against infections and diseases, consisting of various cells, tissues, and organs.

Front

What is the role of the nervous system?

Back

The nervous system is responsible for transmitting signals between different parts of the body, coordinating actions and responses.