2. Which level of ecological organization include all the living organisms in a specific area?
3. What are the biotic factors in an ecosystem?
4. What is the primary source of energy for most ecosystem?
5. What does population density measure?
6. The movement of people from rural areas to urban area is called ____
7. Which of the following is an arboreal habitat
8. A habitat found in/on trees is called
9. In ecosystem,the source of energy is
10. Through which of the following does energy enters in an ecosystem
11. What is the term for the living organisms in an area along with their physical environment
12. Which ecological relationship occurs when one specie benefits at the expense of another specie
13. Which of the following is a decomposer in an ecosystem
15. Which aquatic animal breath through the lungs
17. Which of the following is an omnivore
18. Fresh water habitats are
19. Grasshopper belongs to which class
1a. Write on the following