6. Ecology and Organismal Biology
Ecosystems — Quiz
Test your understanding of ecosystems with 5 practice questions.
Practice Questions
Question 1
Which of the following best describes the process of $ \text{nitrogen fixation} $ in the nitrogen cycle?
Question 2
In an ecosystem, what is the primary limiting factor for primary productivity in terrestrial environments?
Question 3
Which of the following describes the role of $ \text{chemoautotrophs} $ in certain ecosystems?
Question 4
If a food chain consists of algae $ \rightarrow $ krill $ \rightarrow $ penguins $ \rightarrow $ leopard seals, which organism is a tertiary consumer?
Question 5
What is the primary mechanism by which phosphorus is returned to the soil from organic matter?