Unit 5, Ecosystem Lesson 18

42 Questions | By Lorreu | Updated: Mar 22, 2022 | Attempts: 1327

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In biology, an ecosystem is a community of living organisms in conjunction with the non-living components of their environment, all interacting with one another as a system. What else can you tell us about them?

Questions and Answers

1.

Which statement best defines ecosystem?
- A.
  
  An ecosystem is all the non-living organisms and the physical environment within which and with which the organisms don't interact.
- B.
  
  An ecosystem includes all the interactions between living organisms and their environment in that area.
- C.
  
  An ecosystem is a systemic ecological process that reverberates echoes.
- D.
  
  None of the above
2.

True or False. The ecosystem may be an urban centre or a forest, or it may be encompassed into the biome description, which will be one of tundra, boreal forest, or temperate deciduous forest.
- A.
  
  True
- B.
  
  False
3.

Which of the following are considered Producers.
- A.
  
  Grass
- B.
  
  Corn
- C.
  
  Dogs
- D.
  
  A and B are correct
4.

What are the two parts in an ecosystem?
- A.
  
  A living community and the non-living environment.
- B.
  
  Part 1 and Part 2.
- C.
  
  A non-living community and the living environment
- D.
  
  Eco and system
5.

True or False. A living community includes members of all kingdoms.
- A.
  
  True
- B.
  
  False
6.

What belongs in a non-living environment?
- A.
  
  Water and Carbon Dioxide
- B.
  
  Light and Soil.
- C.
  
  Temperature and Wind
- D.
  
  All of the Above
7.

What does trophic levels refer to?
- A.
  
  It refers tropical temperature levels.
- B.
  
  Trophic levels refer to the similar food levels in a living community.
- C.
  
  It refers to the different food levels in a living community.
- D.
  
  None of the above
8.

____________ are living organisms that use inorganic materials, such as carbon dioxide, water, and energy from sunlight to produce their own food.
- A.
  
  Producers
- B.
  
  Consumers
- C.
  
  Decomposers
- D.
  
  Composers
9.

What best defines consumers.
- A.
  
  Consumers are organisms that feed on other living organisms. There are three types: Herbivores., Carnivores and Omnivores.
- B.
  
  Consumers are organisms that consume nutrients by purchasing them from the producers such as corn, wheat and grass.
- C.
  
  Consumers are organisms that feed on other living organisms. There are three types: Herbivores, Predators and Prey.
- D.
  
  None of the above.
10.

Which statement best describes Decomposers.
- A.
  
  Decomposers highly paid musicians that decomposes classical works of Bach and Beethoven.
- B.
  
  Decomposers are living organisms whose ecological niche is to decompose organic matter.
- C.
  
  Decomposers return nutrients or raw materials back to the environment.
- D.
  
  B and C are correct.
11.

What does the food chain show?
- A.
  
  The food chains shows the chain of foods in a food production line.
- B.
  
  The food chain shows how animals compete with each other for similar food sources.
- C.
  
  The food chain shows the decrease in available energy at successive trophic levels.
- D.
  
  The food chain shows the flow of energy through the trophic levels in an ecosystem.
12.

What is the ultimate source of energy for all food chains?
- A.
  
  Water
- B.
  
  Sun
- C.
  
  Photosynthesis
- D.
  
  Oxygen
13.

True or False. A producer uses sunlight directly to produce the energy it needs.
- A.
  
  True
- B.
  
  False
14.

Consumers must ____________ to acquire the energy they need.
- A.
  
  Sunbathe
- B.
  
  Eat
- C.
  
  Drink
- D.
  
  Be merry
15.

_______________ gives a clearer picture of the inter-relationships among living species and how energy flows in an ecosystem.
- A.
  
  Food chain
- B.
  
  Food web
- C.
  
  Food bank
- D.
  
  Food court
16.

What does this picture illustrate?
- A.
  
  Food Chain
- B.
  
  Food Web
- C.
  
  Food Pyramid
- D.
  
  Snakes, Birds, Mouse, Trees and such...
17.

What does a pyramid of energy show?
- A.
  
  It shows the decrease in available energy at successive trophic levels by group together all available producers, all herbivores and so on.
- B.
  
  It shows the inter-relationship among living species and how energy flows in an ecosystem
- C.
  
  The pyramid shows the works of Ancient Egyptians.
- D.
  
  C is correct.
18.

What is this diagram called?
- A.
  
  Pyramid of Energy
- B.
  
  Pyramid of Ecosystem
- C.
  
  Pyramid of Producers, Consumers and Decomposers
- D.
  
  All of the above
19.

Why are there fewer first-order consumers?
- A.
  
  Because they require abundance of food to meet their energy demands.
- B.
  
  Because these consumers must eat many of the producers to get sufficient energy to survive.
- C.
  
  Because they are hunted.
- D.
  
  B and C are correct
20.

Which word means "living together", and refers to the long-term relationships between species.
- A.
  
  Mutualism
- B.
  
  Symbiotic
- C.
  
  Friendship
- D.
  
  BSFF (Best Species Friends Forever)
21.

____________ is a type of relationship that benefits both organisms involved in a community.
- A.
  
  Mutualism
- B.
  
  Benefitialism
- C.
  
  Symbiotic
- D.
  
  Convenient
22.

What type of relationship do these images portray:
- A.
  
  Mutualism
- B.
  
  Commensalism
- C.
  
  Parasitism
- D.
  
  Ahh! That alligator's gonna eat the cute bird!!
23.

______________ is another non-competitive type of relationship between organisms. It is when one organism benefits while the other if unaffected.
- A.
  
  Symbiotic
- B.
  
  Mutualism
- C.
  
  Commensalism
- D.
  
  Parasitism
24.

What do you call the relationship between clown fish and anemones?
- A.
  
  Symbiotic
- B.
  
  Mutualism
- C.
  
  Commensalism
- D.
  
  Electrifyingly Hilarious!
25.

___________ is a symbiotic relationship in which one organism benefits, but the other is harmed.
- A.
  
  Parasitism
- B.
  
  Commensalism
- C.
  
  Mutualism
- D.
  
  Very selfish indeed!