Biology Practice: Ecosystems (Mock Test 1 - Basic)
1. A self-contained area where living organisms interact with each other and their non-living environment is called:
2. Which of the following is an abiotic component of an ecosystem?
3. Organisms that can prepare their own food from simple inorganic substances are known as:
4. Green plants are primary producers because they perform:
5. Animals that feed directly on green plants are called:
6. Micro-organisms like bacteria and fungi that break down dead organic matter are:
7. A linear sequence showing who eats whom in an ecosystem is a:
8. Which of the following is an example of an artificial or man-made ecosystem?
9. The interlocking and interdependent network of several food chains is called a:
10. In a food chain, the position occupied by an organism is its:
11. Which of the following are called 'nature's scavengers' because they eat dead animals?
12. The primary source of energy for all ecosystems is:
13. Organisms that eat both plants and animals are called:
14. A forest is an example of a/an ________ ecosystem.
15. Biotic components include all ________ factors in an environment.
16. The transition zone between two different types of ecosystems is known as:
17. Which level of the food chain always contains the maximum amount of energy?
18. Parasites are organisms that:
19. In a pond ecosystem, Phytoplankton act as:
20. The branch of biology that deals with the study of relationships between organisms and their environment is: