Ecology Unit practice

Five different living organisms are represented below.

Which statement about the organisms represented

above is correct?

• All of the organisms are autotrophs.

• Only the flowering plant, green heron, and

  aquatic plant carry out photosynthesis.

• Only the frog, aquatic plant and green heron are

  heterotrophs.

• Only the flowering plant and aquatic plant are

  autotrophs.

Tags

NGSS.MS-LS1-6

The diagram below represents an energy pyramid.

Which type of organism could occupy levels B, C,

and D of this energy pyramid?

• consumer

• producer

• autotroph

• carnivore

Tags

NGSS.MS-LS2-3

Producers are generally found at the beginning of a

food chain. Which statement best explains why this

is true?

• Producers are usually smaller in size than

  consumers.

• Producers do not rely on other organisms for

  food.

• There are always more consumers than

  producers in food chains.

• Consumers are always more complex

  organisms than producers.

Tags

NGSS.MS-LS2-3

An invasive species, the spiny water flea, was

recently found in a New York lake. These water fleas

eat zooplankton, a food also consumed by native

fishes. The fleas spread from lake to lake by

attaching to fishing lines, anchor ropes, and boats.

Which statement best describes the effect of the

water flea on the lake?

• It will not compete with animals in the local

  food chain.

• It will feed on organisms that are important

  to other species.

• The number of water fleas will decrease due to

  a lack of food.

• There will be no effect on native species in the

  lake.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

A bird makes a nest in a tree.  The bird gets a house, but the tree is unharmed.

• Commensalism
• Mutualism
• Parasitism

Tags

NGSS.MS-LS2-2

Mockingbirds will push the eggs out of a blue bird's nest and use the nest for it's own babies

• commensalism

• parasitism

• mutualism

The increase in population size by movement is called

• emigration

• growth rate

• immigration

• demography

The maximum number of organisms that an environment can support over along period of time is referred to the

• dispersion

• age structure

• demographics

• carrying capacity

Tags

NGSS.HS-LS2-1

What factors change in a demographic(population) transition?

• climate and economic factors

• birth rates and death rates

• immigration and emigration rates

• climate and immigration rates

Tags

NGSS.MS-ESS3-4

Kudzu vines grow by climbing and wrapping around trees. Trees covered by kudzu can die because they are starved of sunlight. What type of relationship exists between the tree and the kudzu growing on them?

• competition
• mutualism
• parasitism
• predator-prey

Tags

NGSS.MS-LS2-1