Food Chains and Trophic Levels

Food Chains and Trophic Levels

Assessment

Interactive Video

Biology

6th - 8th Grade

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial covers the concept of food chains, explaining their definition and the role of trophic levels. It discusses two types of food chains: grazing and detritus. The tutorial also explains the energy transfer process within food chains, highlighting the 10% rule. Examples of food chains in different ecosystems are provided, and the video concludes with a summary of key concepts.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a food chain?

A diagram showing energy flow in an ecosystem

A network of interconnected food webs

A series of organisms each dependent on the next as a source of food

A list of organisms that consume each other

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first trophic level in a food chain?

Autotrophs

Secondary consumers

Primary consumers

Apex predators

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a type of food chain?

Grazing food chain

Omnivorous food chain

Carnivorous food chain

Herbivorous food chain

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a detritus food chain?

A chain that includes only apex predators

A chain involving only herbivores

A chain starting from dead organic matter to microorganisms

A chain starting from green plants to top carnivores

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a food web?

A list of all organisms in an ecosystem

A single food chain in an ecosystem

A network of interconnected food chains

A diagram showing energy flow in a single organism

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

According to the 10% rule, how much energy is transferred to the next trophic level?

1%

50%

100%

10%

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is energy lost at each trophic level?

Due to energy being absorbed by the sun

Because energy is converted into water

Because animals burn calories for movement and metabolism

Due to energy being stored as fat

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