Ecosystem Roles and Human Impact

The video explores key concepts in ecology, including food chains, energy pyramids, and food webs. It discusses ecological relationships like symbiosis and the roles of nitrogen and carbon cycles. The impact of human activities on biodiversity is highlighted, with examples of greenhouse gas emissions, habitat destruction, invasive species, and overharvesting. The video emphasizes the importance of biodiversity and conservation efforts.

What role do termites play in ecosystems?

• They pollinate flowers.

• They are apex predators.

• They break down dead plant matter.

• They are primary producers.

In a food web, what do the arrows represent?

• The color of the organism.

• The direction of energy flow.

• The size of the organism.

• The speed of the organism.

Which of the following is a symbiotic relationship where both organisms benefit?

• Predation

• Commensalism

• Mutualism

• Parasitism

What is the process called when atmospheric nitrogen is converted into ammonia?

• Ammonification

• Nitrogen fixation

• Denitrification

• Nitrification

Which process uses carbon dioxide as an input?

• Combustion

• Decomposition

• Photosynthesis

• Respiration

What is a potential consequence of coral bleaching?

• Coral becomes a primary producer

• Increased coral growth

• Coral becomes more colorful

• Coral becomes vulnerable without algae

What is an example of an invasive species mentioned in the video?

• Live Oaks

• Drummond Red Maples

• Formosan termites

• Loblolly pines

What is a consequence of overfishing in an ecosystem?

• Decrease in primary consumers

• Increase in producers

• Increase in primary consumers

• Increase in apex predators

Which human activity can lead to habitat destruction?

• Sustainable practices

• Species conservation

• Deforestation

• Reforestation

What is one way humans are working to support biodiversity?

• Increasing greenhouse gas emissions

• Overharvesting

• Introducing invasive species

• Species conservation programs