Ecosystems and Trophic Levels
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Questions and Answers

What is an ecosystem?

An ecosystem is a community of living organisms and the non-living components.

What are the two main categories of components within an ecosystem?

Biotic and abiotic components

What does 'biotic' refer to?

Living things

Which of the following are examples of biotic components?

<p>Animals</p> Signup and view all the answers

What is the role of producers in an ecosystem?

<p>Producers are autotrophic organisms that can make their own food.</p> Signup and view all the answers

What are some examples of producers?

<p>Plants</p> Signup and view all the answers

Which of the following are types of consumers?

<p>Herbivores</p> Signup and view all the answers

What do herbivores eat?

<p>Plants</p> Signup and view all the answers

What do scavengers eat?

<p>Dead animals</p> Signup and view all the answers

What is the role of decomposers in an ecosystem?

<p>Decomposers are heterotrophic organisms that break down dead organic matter and recycle nutrients back into the ecosystem.</p> Signup and view all the answers

What are some examples of decomposers?

<p>Bacteria and fungi.</p> Signup and view all the answers

What is a food chain?

<p>A food chain is a series of organisms that transfer energy, in the form of food, between the trophic levels of an ecosystem using only one species at each level.</p> Signup and view all the answers

What is symbiosis?

<p>Symbiosis is a close relationship between two different species where at least one organism benefits.</p> Signup and view all the answers

Which of the following are types of symbiosis?

<p>Mutualism</p> Signup and view all the answers

What is mutualism?

<p>Mutualism is a type of symbiotic relationship where both organisms benefit.</p> Signup and view all the answers

What is commensalism?

<p>Commensalism is a symbiotic relationship where one organism benefits and the other is not affected.</p> Signup and view all the answers

What is parasitism?

<p>Parasitism is a symbiotic relationship where one organism benefits and the other is harmed.</p> Signup and view all the answers

What is a non-symbiotic relationship?

<p>A non-symbiotic relationship is an ecological interaction of organisms that live apart from each other.</p> Signup and view all the answers

Which of the following are examples of non-symbiotic relationships?

<p>Competition</p> Signup and view all the answers

What is competition?

<p>Competition is an ecological interaction between organisms where two or more organisms need the same thing in order to survive.</p> Signup and view all the answers

What is predation?

<p>Predation is an ecological interaction where a predator feeds on a prey.</p> Signup and view all the answers

What is acid rain?

<p>Acid rain forms when sulfur oxides and nitrogen oxides in the atmosphere react with rainwater.</p> Signup and view all the answers

What is global warming?

<p>Global warming is the increase in the average temperature of the Earth's atmosphere.</p> Signup and view all the answers

Producers are heterotrophic organisms that get their energy from eating other organisms.

<p>False</p> Signup and view all the answers

Decomposers break down dead organic matter and recycle nutrients back into the ecosystem.

<p>True</p> Signup and view all the answers

In mutualism, one organism benefits and the other is not affected.

<p>False</p> Signup and view all the answers

In a food chain, energy flows from consumers to producers.

<p>False</p> Signup and view all the answers

Acid rain is a result of pollution caused by burning fossil fuels.

<p>True</p> Signup and view all the answers

Global warming is solely caused by natural fluctuations in the Earth's climate system.

<p>False</p> Signup and view all the answers

Competition is an ecological interaction between organisms where two or more organisms need the same thing in order to survive.

<p>True</p> Signup and view all the answers

Predation is an ecological interaction where a predator feeds on a prey.

<p>True</p> Signup and view all the answers

Study Notes

Ecosystems

  • An ecosystem: community of living organisms and the nonliving components.

  • Producers: autotrophs, making their own food (e.g., plants).

  • Consumers: heterotrophs, obtaining energy by consuming others (e.g., herbivores, carnivores, omnivores, scavengers).

  • Decomposers: heterotrophs that break down dead organic matter (e.g., bacteria, fungi).

  • Producers: autotrophic organisms that contain chlorophyll and make their own food through photosynthesis using sunlight.

  • Consumers: organisms that get their energy by eating other organisms.

  • Herbivores: eat plants.

  • Carnivores: eat animals.

  • Omnivores: eat both plants and animals.

  • Scavengers: consume dead organisms.

  • Herbivores: feed on vegetation or primary consumers within an ecosystem.

  • Carnivores: prey on other animals, possibly secondary consumers or tertiary consumers.

  • Omnivores: feed on both plants and other consumers.

  • Scavengers: feed on dead animals or plant matter.

  • A food chain: linear sequence of organisms where each organism feeds on the one below.

  • A food web: multiple food chains interconnect.

  • A food web :shows feeding relationships among different organisms.

  • An ecological pyramid: graphical representation of trophic levels.

  • Symbiosis: close relationship between two different species.

    a. Mutualism: Both species benefit.

    b. Commensalism: One species benefits, the other is unaffected.

    c. Parasitism: One species benefits, the other is harmed.

  • Non-Symbiotic relationships: ecological interactions where organisms live apart from one another..

  • Competition: ecological interaction between two or more organisms needing the same resource.

  • Predation: ecological interaction where one organism (predator) feeds on another (prey.)

  • Global Warming: increasing average temperature of Earth's atmosphere.

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Unit 6 Lesson 01 - Interactions PDF

Description

Explore the intricate balance of ecosystems and the different roles within them. This quiz covers living organisms, their interactions, and the crucial roles of producers, consumers, and decomposers. Understand how energy flows through these systems with various examples.

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