SSA Review: Life Science

Front

What is the cell theory?

Back

The cell theory states that: 1) All living things are made of cells, 2) Cells are the basic unit of life, 3) All cells come from pre-existing cells.

Front

Who first observed cells and in what year?

Back

Robert Hooke first observed cells in 1665.

Front

What is a limiting factor in an ecosystem?

Back

A limiting factor is anything that keeps a population's size from increasing beyond a certain point.

Front

What is an abiotic factor?

Back

An abiotic factor is a non-living component of an ecosystem, such as temperature, water, and sunlight.

Front

What is natural selection?

Back

Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

Front

What does it mean for an organism to adapt?

Back

To adapt means to change or adjust to new conditions in order to survive.

Front

What is the role of the nervous system during exercise?

Back

The nervous system helps regulate bodily functions, including signaling thirst when the body is dehydrated.

Front

What is the difference between biotic and abiotic factors?

Back

Biotic factors are living components of an ecosystem (like plants and animals), while abiotic factors are non-living components (like water and temperature).

Front

What is the significance of the golden toad's extinction?

Back

The extinction of the golden toad highlights the impact of environmental changes and diseases on species survival.

Front

What is the misconception about natural selection?

Back

The misconception is that only bigger and stronger organisms survive; in reality, it's about how well an organism adapts to its environment.