Ecology

Green plants are

• producers
• consumers
• herbivores
• omnivores

What is the original source of almost all energy in most ecosystems?

• carbohydrates
• sunlight
• water
• carbon

An organism that produces its own food supply from inorganic compounds is called a(an)

• heterotroph
• consumer
• detritivore
• autotroph

symbiotic relationship in which both organisms benefit

• competition
• Mutualism
• nitrogen fixation
• energy pyramid

A living relationship between two species in which one organism is harmed is called...

• mutualism
• commensalism
• parasitism
• niche

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

Identify the symbiotic image and definition.

• mutualism
• commensalism
• parasitism
• predation

Identify the symbiotic image and definition.

• mutualism
• commensalism
• parasitism
• predation

Identify the symbiotic image and definition.

• mutualism
• commensalism
• parasitism
• predation

What is one of the most important processes that removes carbon from the atmosphere? 

• photosynthesis
• cellular respiration
• erosin
• soil respiration