4. Suppose that a typical cell is approximately 1/3 the diameter of the field of vision using high power and the diameter of the field of vision for high power is 600 micrometers. What is the size
of this cell? (one millimeter = 1,000 micrometers)
5. How does increasing the magnification affect the field of vision?
6. Explain how total magnification is calculated.
7. Why is it important to avoid creating air bubbles from the slide when preparing a wet mount?

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.