Ecosystem Roles and Interactions

Ecosystem Roles and Interactions

Assessment

Interactive Video

Biology

6th - 7th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial discusses the interactions of organisms within their environments, focusing on biotic and abiotic factors. It explains the concept of brackish water and salinity, and how these affect organism survival. The tutorial includes learning tasks that explore energy flow in ecosystems, interactions in intertidal zones, and the roles of different organisms. It concludes with a task to create a model of an ecological pyramid, illustrating the arrangement of producers, consumers, scavengers, and decomposers.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two main types of factors that interact in an ecosystem?

Chemical and physical factors

Biotic and abiotic factors

Living and non-living factors

Organic and inorganic factors

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the measure of salt in water?

Viscosity

Conductivity

Density

Salinity

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a food chain, which organism is likely to be eaten by small fish, shrimp, and mussels?

Coral

Seaweed

Algae

Plankton

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to intertidal zones during high tides?

They dry up completely

They are exposed to sunlight

They are covered with water

They become rocky

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which organism is a producer in an ecosystem?

Sea urchin

Fish

Crab

Algae

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a consumer in an ecosystem?

Cyanobacteria

Green crab

Phytoplankton

Salt marsh grass

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What role do decomposers play in an ecosystem?

Consume other organisms

Produce food from sunlight

Scavenge for leftovers

Break down remains into simpler materials

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