Branch of Bio dealing with interactions among organisms and between organisms and their environment

• Recycling
• Ecology

Combined portions of Earth where all living thing exist

• Biome
• Biosphere

Plants are 

• producers
• autotrophs
• both producers and autotrophs

What is the original source of energy for most ecosystems?

• sun
• chemicals
• grass

An organisms that does not produce its own food

• autotroph
• heterotroph
• chemotroph

Which of the following is a decomposer?

• bacteria
• plants
• animals

Which of the following would have the most energy?

• Hawk
• mouse
• snake
• centipede grass

How much energy gets passed from one trophic level to the next in a food chain?

• 10%
• 90%
• 100%
• none energy is recycled

Which of the following is not one of the main types of consumers?

• carnivore
• ominvore
• herbivore
• autovore

What is always at the bottom of an ecological pyramid?

• consumers
• producers
• omnivores
• carnivores