1. ………….. is the interaction of a community of organisms with their environment.

Question

1. ………….. is the interaction of a community of organisms with their environment.
2. In nutrient cycling, ………….. must be converted to some form before plants can use?
3. ………………………. is the first process to decay dead rat in forest floor in the nitrogen cycle.
4. …………………. is the process of converting triple-bonded nitrogen into usable nitrogen (such as ammonia or nitrate).
5. …………… (countries) would be a very significant source of fixed nitrogen in the atmosphere?
6. Energy is transferred from sunlight and converted into chemical energy in food by ……………. (process).
7. Energy in food (glucose) is released and used to make ATP in your cells by ………….. (process).
8. Abiotic factors that are important to determine land biomes are ……………
9. ………….. is the coastal body of brackish water where rivers meet oceans.
10. Animals which feed on primary and higher-level consumers are known as ………….
11. ………………….. is the gradual growth of biotic communities in areas which have no soil.
12. Hyenas and Lions prey on antelopes, zebras, and gazelles in Africa savanna. Lions frequently chase Hyenas away from kill, and take it for themselves. This interaction is ……….
13. ………………. provide the entire input of energy and oxygen to humans.
14. On the Arctic tundra, the ground beneath the surface remains frozen all year. This permanently frozen ground is called ........
15. The situation where one species eliminates another through competition is called ….
16. ………………….. (abiotic factors) are important to determine land biomes
17. Typically, buttress roots are found in ………. (biome).
18. …………….. (biome) is characterized by nutrient-rich soil, hot and cold, frequent fires, and grazing by small mammals, such as prairie dogs.

Read the following information for question 19 - 20
Hummingbirds pollinate native cactus in the Sonoran Desert. When hummingbirds are removed, invasive species have taken over cactus.

19. The role of the Hummingbirds in the Sonoran Desert is ……………. species.
20. The relationship of hummingbird and cactus is …………

Explanation / Answer

1. Ecosystem

2. nutrients

3. Aerobic decomposition

4. Nitogen fixation

5. Tropical

6. Photosynthesis

7. Cellular respiration

8. Temperature and precipitation

9. Estuary

10. Apex predators

11. Primary ecological succession

13. Producers

14. Permafrost

15. Competitive exclusion

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