Which of the following is most likely to decrease biodiversity? Protecting more land from future housing developments

Reintroducing natural predators to an area

Clearing a forest to raise livestock for a nearby town

Adding native plants to a suburban garden

In the Kelp forest ecosystem, sea urchins eat kelp, and sea otters eat sea urchins.

What is the role of sea urchins in this ecosystem?

primary consumers

secondary consumers

primary producers

producers

What is the correct order of energy flow in an ecosystem?

sun → grass → rabbit

sun → rabbit → grass

fox → rabbit → grass

sun → fox → rabbit

A savannah ecosystem includes grasses, zebras, and lions, and elephants.

Which of the following has the greatest overall biomass in this ecosystem?

grasses

lions

zebras

elephants