School Improvement in Maryland

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Standard 3.0 Life Science

Topic D. Evolution

Indicator 1. Explain that in any particular environment, the growth and survival of organisms and species depend on the physical conditions.

Objective b. Explain that in all environments-freshwater, marine, forest, desert, grassland, mountain, and others-organisms with similar needs may compete with one another for resources, including food, space, water, air, and shelter.

Brief Constructed Response (BCR) Item

The diagram shows the relationships among organisms in an ecosystem.

Question Image

Explain how organisms in this ecosystem compete for resources. In your explanation, be sure to include

  • the animals that compete for the same food source
  • why the plants and animals compete for water

Write your answer on your answer document

/share/assessment_items/xml/items/msa_science_6_015.xml

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