Ecology Review, Part 1

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

An organism that obtains energy by consuming plants and animals.

• Omnivores
• Carnivores
• Herbivores
• Humans 

An organism that uses an outside source of energy like the sun to create energy-rich food molecules.

• Consumer
• Producer
• Decomposer
• Parasite 

The system that contains all living things on Earth.

• Biosphere

• Atmoshpere

• Hydrosphere

• Geosphere

Regions of the planet with similar types of life and climates are called

• biomes

• kingdoms

• spheres

• systems

The biosphere includes plants and animals that live

• on land

• on land and in the water

• on land, in water, and in the air

• in water

"Bio-" means

• life

• water

• Earth

• air

A community of organisms and their abiotic environment.

• Environment

• Biosphere

• Ecosystem

• Community

Carbon can be found in...

• The atmosphere
• Soil
• Fossil fuels
• All of the above

Respiration is the process by which animals take in _____ and release _____. 

• carbon dioxide, water

• carbon dioxide, oxygen

• water, carbon dioxide

• oxygen, carbon dioxide