Briefly explain how you would perform a 1:5 dilution of a beverage sample if you had 10-ml graduated pipet available. A 10-ml graduated pipet is marked to the nearest 0.1 ml.

Which of the following involves only abiotic factors? a. a large rock being weathered by wind and rain b. an otter using a stone to break open a sea urchin c. a spider building a web in the corner of a building d. a pine tree absorbing light from the sun