Ecology

What is the primary energy source for all living organisms?

• Plants

• Animals

• Carbon Dioxide

• Sunlight

What is another name for a heterotroph?

• Consumer

• Producer

• Autotroph

• Decomposer

What is another name for an autotroph?

• Consumer

• Herbivore

• Producer

• Omnivore

Biotic factors are ___________ and would include things such as _______________

• Living things/rocks

• Living things/plants

• Nonliving things/rocks

• Nonliving things/plants

Which of the following is described as a long term biological relationship between two species that results in at least one species benefiting?

• Competition

• Symbiosis

• Predation

• Selection

Which of the following is defined as fighting over resources and can be between members of the same species or members of different species?

• Competition

• Symbiosis

• Predation

• Selection

Which of the following is described as a short term interaction between two individuals of different species where one is the predator and the other is the prey?

• Competition

• Symbiosis

• Predation

• Selection

How much energy is passed down between trophic levels?

• 100%

• 10%

• 1%

• 0.1%

What happens to the 90% of energy that is not passed down through trophic levels?

• Lost as heat

• Completely destroyed

• Stays with the previous trophic level

• Lost as kinetic energy

Biomass (increases or decreases) up an energy pyramid

• Increases

• Decreases