Question

question 4 1 pts
which of the following as an example of a holistic ecosystem model?
○ exponential population growth
○ food webs
○ biomagnification
○ eutrophic lakes

question 5 1 pts
the epa recommends that pregnant women and young children should not consume top predators (like swordfish, shark) because of
○ low nitrogen content.
○ low mercury content.
○ high mercury content.
○ high nitrogen content.

Explanation:

For Question 4: A holistic ecosystem model considers the entire interconnected system of organisms and their environment. Food webs map all feeding relationships across multiple species and trophic levels, representing the whole ecosystem's energy and nutrient flow. The other options focus on single processes or phenomena rather than the full system.
For Question 5: Top predators accumulate high levels of mercury through biomagnification in the food chain. The EPA warns vulnerable groups (pregnant women, young children) against consuming these fish due to this high mercury content, which poses health risks.

Answer:

Question 4: Food webs
Question 5: high mercury content.