Practice Quizziz Food Webs and Ecosystems

Ecosystems include all of the following except...

• Populations

• Habitat

• Abiotic factors

• Biotic factors

• Biosphere

Select all Abiotic factors that contribute to an ecosystem. (Select ALL that apply)

• Soil

• Wind

• Trees

• Sunlight

• Air

Select all Biotic factors that contribute to an ecosystem. (Select ALL that apply)

• Insects

• Wind

• Trees

• Sunlight

• Birds

What is the number one cause of species decline and extinction?

• Loss of habitat

• Over hunting

• Lack of sunlight

• Carbon sequestration

The use of pesticides and clear cutting a forest are examples of what type of environmental stress?

• Sudden, natural stressors

• Sudden, artificial (Human) stressors

• Gradual, artificial (Human) stressors

• Gradual, natural stressors

Why is biodiversity important?

• Species diversity ensures natural sustainability

• Species are more resistant to disease and disturbances

• Creates a functional and healthy ecosystem

• Purifies our air and water supplies

• All of the above

Which type of ecosystem / biome has the most biodiveristy?

• Rainforest

• Tundra

• Desert

• Grassland

As you increase in trophic levels

• Only 10% of the energy is passed on

• There are more organisms

• Energy increases

• All of the above

Which trophic level has the most energy?

• Producers

• Primary consumers (herbivores)

• Secondary consumers (carnivores)

• Tertiary consumers (top carnivores)

Which trophic level has the lowest population?

• Producers

• Primary consumers (herbivores)

• Secondary consumers (carnivores)

• Tertiary consumers (top carnivores)