general

Question 1

what is cell theory?

Answer 1

• cell is the basic unit of life
• all living things are composed of one or more cells
• new cells arise from existing cells

Question 2

what is the rough size of a human egg cell, a red blood cell, and an animal and plant cell?

Answer 2

• human egg cell- 130 micrometres
• red blood cell- 8 micrometres
• animal and plant cells- 10-100 micrometres