LESSON 1

Robert Hooke, Anton van Leeuwenhoek, Theodor Schwann, Rudolf Virchow, and Matthias Schliden were all responsible for what theory?

• The Theory of Gravity
• The Theory of Relativity
• The Cell Theory
• The Theory of Continental Drift

All living things are made up of...

• cells
• cell tissues
• organ
• organ systems

All cells come from___________ cells.

• pregnant
• pre-existing
• paternal
• pin size

A cell without a true nucleus

• Prokaryotic

• Eukaryotic

A cell that has a true nucleus

• Prokaryotic

• Eukaryotic

Which type of cell?

• Prokaryote
• Eukaryote

This is a picture of:

• Prokaryote
• Eukaryote

An organism made of one cell is called

• unicellular organism
• multicellular organism

An Amoeba is a unicellular, animal-like protist that lives in ponds and streams. According to cell theory, where did this cell come from?

• another pre-existing amoeba cell.
• energy from sun that allowed the protist to reproduce.
• a multicellular organism.
• the nonliving environment.

A structure inside a cell that does a certain job is called an ___________________.

• cell
• organelle
• object 
• part