Biology Practice: Ecosystem (Mock Test 3 - Advanced)
1. Why is the "Flow of Energy" in an ecosystem considered unidirectional while "Nutrient Cycling" is considered cyclic?
2. Which of the following best explains the "Niche" of an organism?
3. In a forest ecosystem, the pyramid of numbers for a single large tree supporting many birds and parasites is:
4. The process of "Biomagnification" refers to the:
5. "Antagonism" is a type of biotic interaction where:
6. What is the metabolic significance of "Detritivores" like earthworms in an ecosystem?
7. The "Standing Crop" of an ecosystem is specifically the:
8. Which of the following factors is considered a "Density-Independent" limiting factor?
9. In an energy pyramid, if the Producers (T1) have 10,000 J of energy, how much energy is available to the Tertiary Consumers (T4)?
10. The phenomenon where two different species compete for the same limited resource and the inferior one is eliminated is:
11. Which of the following cycles is a "Sedimentary Cycle"?
12. What is the primary cause of "Eutrophication" in a pond?
13. In a parasitic relationship, the "Host" is the organism that:
14. The "Biogeochemical" term implies that nutrients circulate through:
15. Which of these interactions is correctly labeled as (+/-)?
16. The total amount of solar energy captured by producers per unit area per unit time is called:
17. Which organism acts as a "Secondary Consumer" in a pond ecosystem?
18. "Ammunification" in the Nitrogen cycle is the process of:
19. In a Spindle-shaped pyramid of numbers, which trophic level has the fewest individuals?
20. Which of the following is a "Climax Community"?
