science

Which of these supports the cell theory as it is stated today?

• Cells must contain a nucleus
• All organisms are made of more than one cell
• All cells come from pre-existing cells
• Not all cells are alive

Under a microscope, what kind of cells lack membrane-bound internal organelles?

• Prokaryotes
• Eukaryotes
• Plants
• Animals

Which invention from the 17th century allowed for the development of modern cell theory? 

• X-rays 
• computers 
•  the light microscope
• . the scanning electron microscope

The combined observations of Mattias Schleiden, Theodor Schwann and Rudolph Virchow resulted in the formation of the cell theory. Which of the following is not part of the cell theory?

• All cells contain a nucleus. 
• All cells come from other living cells
• All living organisms are made of one or more cells.
• Cells are the basic unit of structure and function of all living things.

The combined observations of Mattias Schleiden, Theodor Schwann and Rudolph Virchow resulted in the formation of the cell theory. Which of the following is not part of the cell theory?

• All cells contain a nucleus. 
• All cells come from other living cells
• All living organisms are made of one or more cells.
• Cells are the basic unit of structure and function of all living things.