Select Category
All Categories
Accounting
Agriculture
Astrobiology
Banking & Finance
Business World
Civilizations
Commerce & Economics
Competitive exams
Computer Science & IT
Current affairs
Earth Science
Education
Environment
Explore the Animal World
Food chain
General Knowledge
Geography Map
Green Life
History
Human Health
Journalism
Law
Science
Social Science
TAX
About Us
Contact Us
Login
ECology - Part 4
1
of
25
💡
Hints:
3
Q1. The following natural events will cause primary succession to occur:
A. floods and hurricanes
B. wildfires and controlled burns
C. tsunamis and tornadoes
D. glacier movement and volcanoes
Q2. What percent of Earth’s lands have humans developed and used for their on purposes?
A. 90%
B. 50%
C. 30%
D. 20%
Q3. Temperate grasslands are also known as
×
A. Savanna
B. Chaparral
C. Prairie
D. Taiga
Q4. Which of the following is a density independent factor?
A. competition for resources
B. predation
C. disease
D. natural disasters
Q5. What’s the food chain in order
A. producer,secondary,tertiary,primary
B. producer,primary,secondary,tertiary
C. ,primary,producer,secondary,tertiary
D. tertiary,primary,producer,secondary
Q6. Wind causes several trees to fall in a forest ecosystem. This is an example of a/an
A. Abiotic factor
B. Biotic factor
Q7. Exponential growth in a population slows down or stops as
A. resources become limited.
B. rate of immigration increases. .
C. rate of emigration decreases.
D. birth rate increases.
Q8. Which is the correct order of the Earth’s Biosphere?
A. Biosphere, Community, Population, Ecosystem, Organism
B. Community, Population, Ecosystem, Organism, Biosphere
C. Organism, Population, Community, Ecosystem, Biosphere
D. Organism, Community, Ecosystem, Population, Biosphere
Q9. Organisms that break down dead things for food are:
×
A. Scavengers
B. Decomposers
C. Posers
D. Parasites
Q10. Burning firewood uses the process of
A. decomposition
B. respiration
C. photosynthesis
D. combustion
Q11. These kind of observations are made using instruments such as rulers, balances and thermometers.
A. Qualitative
B. Quantitative
C. Scientific
Q12. Which cycle would be affected to the greatest extent by the destruction of the Earth’s huge rain forests?
A. water cycle
B. carbon cycle
C. nitrogen cycle
D. None of these is greatly affected
Q13. What is at the base of every food chain?
A. Producers
B. Primary Consumers
C. The Sun
D. Secondary Consumers
Q14. A lion is not
A. prey
B. consumer
C. predator
D. carnivore
Q15. Is this picture an example of a mutualistic symbiosis?
×
A. Yes
B. No
Q16. The place where an organism lives and that provides the things the organism needs is called its
×
A. niche
B. habitat
C. community
D. biome
Q17. Some scientists think that global warming may be
A. a natural variation in climate.
B. a result of human activities.
C. melting the polar ice caps.
D. all of these
Q18. What is the relationship between particle size and permeability?
×
A. As particle size increases, the permeability decreases.
B. As particle size increases, the permeability increases.
C. As permeability decreases, the particle size decreases.
D. As permeability increases, the particle size remains constant.
Q19. What does a Primary Consumer eat?
A. Tertiary Consumers
B. Secondary Consumers
C. Producers
D. Heterotrophs
Q20. Only biotic factors.
A. population and ecosystem
B. community and biome
C. population and community
D. population and biome
Q21. Any living thing that gets the energy it needs by making its own food.
A. photosynthesis
B. cellular respiration
C. producer
D. consumer
Q22. ___ is the chemical process that plants use to change the sun’s energy into a food source (glucose).
A. cellular respiration
B. photogenesis
C. photosynthesis
D. photoreactor
Q23. A model used to show the transfer of matter and energy through an ecosystem is called a
A. Energy graph
B. Matter chart
C. Energy model
D. Food Chain
Q24. symbiotic relationship in which one organisms benefits and the other organism is not affected
×
A. competition
B. mutualism
C. parasitism
D. commensalism
Q25. Which of the following is a biotic factor?
×
A. wharle
B. water
C. rock
D. wind
Submitting Your Quiz...
Please wait while we process your answers