Ch 3 & 4 Review #2 CP

Which type of organisms are found on base of the ecological pyramids?

• herbivores

• omnivores

• decomposers

• autotrophs

What are pioneer species?

• heterotrophs

• producers

• species that go into an ecosystem that has been disturbed.

• examples of pioneer species include lichen

• There are more than one correct answer.

What is an example of an autotroph in aquatic systems?

• phytoplankton

• zooplankton

• small fish

• shark

What is an example of a terrestrial photoautotroph?

• sunflowers

• blue jays

• foxes

• lions

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Why are decomposers important in the stability of an ecosystem?

• decomposers recycles nutrients.

• decomposers prevent infectious diseases.

• decomposers provide energy for all the other organisms.

• decomposers eats detritus.

• without decomposers such as bacteria, nitrogen cannot cycle through the biosphere.

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Decomposers are important in the:

• water cycle

• carbon cycle

• nitrogen cycle

• all of the cycles.

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A detritivore:

• consume living or dead organisms.

• consume animals only.

• consume plants only.

• consume both plants and animals.

• consume dead organisms (detritus).

Cellular respiration is:

• the process of converting sunlight energy into complex sugars

• the process of converting food energy into energy cells can use

• breaks down organic molecules

• incorporating simple molecules into living organisms.

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What are the ways in which carbon dioxide can be added to the atmosphere?

• photosynthesis

• transpiration

• denitrification

• decomposition

• photosynthesis

Which of the following DOES NOT influences the climate of an ecosystem?

• latitude

• temperature

• amount of nitrogen gas in the atmosphere

• wind patterns

• angle of the sun

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