Answer:
Food chains are a pictorial description of an ecosystem: what eats what. This helps scientists track the web of interdependence. If one important component in a chain is removed or affected, we can make predictions about how this might impact the entire ecosystem. We can track the effects of disruptions on a system.
Answer:
B. found in every living thing
Explanation:
Answer: bacterial species of the genera Staphylococcus, Streptococcus, Enterococcus, Klebsiella, Enterobacter, and Neisseria.
Explanation: