What is the benefit to doing epidemiological studies? A.) Patients do not have to unwillingly be exposed to harmful substances

B.) Patients are never exposed to harmful substances

Which of the following is a difference between a food chain and a food web? selected: a. food webs contain both plants and animals. food chains only contain animals.this answer is incorrect. b. food webs show energy transfer. food chains show which animal eats which animal. c. food webs separate organisms by tropic level. food chains do not. d. food webs are a complex patterns of energy flow. food chains only show one line of energy flow.

Compare and contrast nutrient limitation in soil vs. nutrient limitation in aquatic ecosystems

Where is energy trapped inside the organelle chlorophyll