Which statement describes how to appropriately handle live earthworms in a lab investigation? Pick up earthworms gently with moist hands. Place individual earthworms on the lab table while setting up equipment. Press the ends of the earthworms firmly against the table to keep them still. Hold onto earthworms tightly with metal tweezers.

When should a bar graph be used? a. when there is no independent variable. b. when the independent variable is continuous and does not show a relationship to the dependent variable. c. when the independent variable is continuous and shows a causal link to the dependent variable. d. when the independent variable is composed of categories and does not show a relationship.

Which of the following is an advantage of solar energy?

Which of these is true for bacteria because they are prokaryotic cells? a. they can engulf body cells in order to make memory cells. b. they must invade viruses in order to reproduce. c. they are much larger than eukaryotic body cells. d. they can reproduce on their own outside of other cells.