Which sphere of Earth contains all of Earth's water?

• Hydrosphere
• Atmosphere
• Geosphere

Which sphere of Earth contains all of Earth's life?

• Hydrosphere
• Biosphere
• Geosphere

The unique role a species plays in its environment is its _______.

• abiotic factor
• niche
• trophic level

Which organisms are found at the bottom of an energy pyramid?

• Producers
• Tertiary consumers
• Secondary consumers

______________ are consumers that feed on dead animals.

• producers
• scavengers
• autotrophs

Autotrophs obtain energy from the ____.

If the wind during a tornado causes a tree to fall over which "two spheres" of Earth are interacting?

• atmosphere & biosphere
• biosphere & hydrosphere
• hydrosphere & atmosphere

Earth's rocks, minerals, sand & mountains are considered parts of the _____.

• Hydrosphere
• Atmosphere
• Biosphere
• Geosphere

Organisms that eat ONLY MEAT are called _____.

• herbivores
• carnivores
• omnivores

What do we know about the niche of a rainbow trout based on this graph?

• Most rainbow trout live in marine (saltwater).
• Most rainbow trout are native to cold-water tributaries of the Pacific Ocean in Asia and North America.
• Most rainbow trout are able to survive in water with a pH between 7 - 10.