Describe three human activities that negatively impact watersheds. For each, describe the activity and describe the negative impacts it causes.

Answer in at least 3 complete sentences.

Describe how a student should adjust the microscope to see the cells on a slide more clearly?

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin

Which of these statements is true about autotrophs, but not heterotrophs? a. they use sugar and oxygen to make carbon dioxide and water. b. they use chlorophyll and oxygen to make carbon dioxide and water. c. they use sunlight, water, and carbon dioxide to make sugars. d. they use sunlight, water, and oxygen to make chlorophyll.