Lawn a Was Planted with a Single Species of Grass

question 83

Multiple Choice

Lawn A was planted with a single species of grass, which covers 90 percent of the lawn.The other plant species there include five species of weeds, each covering 2 percent of the lawn.Lawn B has the same six species, but with percentages of 75 percent grass and 5 percent for each of the five weeds.How do species richness and species evenness of the two lawns compare?

• A) The two lawns have equal species richness and species evenness.
• B) The lawns have equal species richness, but lawn A has greater species evenness.
• C) The lawns have equal species richness, but lawn B has greater species evenness.
• D) The lawns have equal species evenness, but lawn A has greater species richness.
• E) The lawns have equal species evenness, but lawn B has greater species richness.

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