Investigating Organisms

Front

What is the Pleistocene epoch?

Back

A period of Earth's history that ended about 10,000 years ago, characterized by an Ice Age with much of the land covered in snow and ice.

Front

How did the climate during the Pleistocene epoch affect mammal fur?

Back

Mammals likely had longer and thicker fur to adapt to the cold climate.

Front

What is natural selection?

Back

A process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What does the peppered moth example illustrate?

Back

It shows how environmental changes can lead to changes in species through natural selection.

Front

What is a prokaryotic cell?

Back

A type of cell that does not have a nucleus or other membrane-bound organelles.

Front

What is a eukaryotic cell?

Back

A type of cell that has a nucleus and other membrane-bound organelles.

Front

What is the cell theory?

Back

The theory that all living things are made of cells, and all cells come from other cells.

Front

Why are cheek cells identical?

Back

They are identical because they all come from the same location in the body and originate from cell division.

Front

What does unicellular mean?

Back

Organisms that consist of a single cell.

Front

What is photosynthesis?

Back

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