1. Marine Ecology
Ecosystem Concepts — Quiz
Test your understanding of ecosystem concepts with 5 practice questions.
Practice Questions
Question 1
If a marine detritivore ingests 1000 J, egests 200 J, and uses 300 J in respiration, what are its assimilation efficiency (AE) and production efficiency (PE)? Show calculation.
Question 2
Why do many marine biomass pyramids appear inverted compared to terrestrial pyramids?
Question 3
Which type of ecological pyramid is never inverted in marine ecosystems?
Question 4
Which equation defines production efficiency (PE) of a consumer in a marine ecosystem?
Question 5
Overfishing of shark populations leads to a rise in stingray numbers and a collapse of scallop stocks. Which phenomenon does this illustrate?