Ecology Unit Review

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.

The following is an example of organisms interacting with each other in an ecosystem:

• a whale surfacing for air

• a bird flying across the sky

• fish swimming in a pond

• a hawk catching a trout

This picture shows which example

• mutualism

• parasitism

• neutralism

• commensalism

Which represents the flow of energy in this food chain?

• producers- decomposers- consumers-

• decomposesr- consumers- producers

• consumers- producers- decomposers

• producers- consumers- decomposers

Based on the information in the energy pyramid shown, which statement BEST describes the energy relationship found within any ecosystem.

• Consumers generate more energy than producers in an ecosystem.

• Plants produce the most energy for organisms in an ecosystem.

• Hawks would consume the most energy availble in an ecosystem.

• Primary consumers eat secondary consumers.

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

• mutualism

• parasitism

• commensalism

• competition

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

What is formed during primary succession that doesn't need to be formed during secondary succession?

• pioneer species
• soil
• climax community
• lichens

What type of succession is shown going from figure A to figure B?

• primary succession
• eutrophication
• secondary succession
• intermediate