Figure 2.6 Measure the Circle Use a metric ruler marked in centimeters (cm) and millimeters (mm).
Micrometers (um) are not marked on the ruler, but remember that
1000 um would fit in between each millimeter hashmark.
1. Measure the diameter of the circle (Fig 2.6).
mm
2. Now, calculate its diameter in micrometers:
um
3. What is the diameter of the circle in nanometers?
nm

answer: that would be cheating

explanation:

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.

answer; both surfaces of the membrane are nonpermeable