I believe it'd be A because the virus infects cells whereas the Giardia Lambia only releases toxins.
Answer:
Correct answer is B
Explanation: I believe an Ecosystem is community of living organisms where non living systems of their environmental. Biotic and Abiotic components are together nutrient cycles and energy flows. There are types of Ecosystems such as Tundra, Desert, Cropland, and Rainforest..etc
Answer:
Membrane-Bound Organelles
