Unit 6

Members of a species in a defined area

• Ecosystem
• community
• biodiversity
• population

Series of steps in which organisms transfer energy by eating and being eaten

• foodweb
• consumer
• food chain
• omnivore

Consumer that eats plants

• heterotroph
• herbivore
• producer
• community

Organisms that relies on other organisms for food; consumer

• herbivore
• decomposer
• heterotroph
• species

All the organisms in a particular location, including their nonliving environment

• ecosystem
• carnivore
• niche
• population

What does fungi do to dead plants and animals?

• Leave them there
• Decompose them
• Wait for other animals to eat them
• Move away

What may happen if the snowshoe hare was removed from the food web pictured?

• The insects in the habitat would increase.
• The shrew population would decrease due to being only hawk food source.
• The willow tree population would decrease.
• Foxes would dies due to no food source. 

Which of the following leads to a decrease in biodiversity?

• protection of ecosystems
• pollution control
• selective cutting
• introduction of exotic or invasive species

Nitrogen fixation processes nitrogen from which of the following sources?

• lightning
• fertilizers
• dead plants
• atmosphere

A carbon "sink" is best described as:

• a reservoir that readily releases carbon to another reservoir
• a carbon reservoir that stores more carbon that it is releasing
• something that causes carbon to leak out to the atmosphere
• a carbon reservoir that is releasing more carbon than it is taking in