Which of these best illustrates natural selection? *
The largest organisms in a species receive the only breeding opportunities.
An organism with favorable genetic variations will tend to survive and breed successfully.
A population monopolizes all of the resources in its habitat, forcing other species to migrate.
A community whose members work together utilizes all existing resources and migratory routes.
Answers: 1
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What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid
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Which of the following correctly matches an immune system cell with the defense it produces? a. b cells release cytotoxins. b. t cells release cytotoxins. c. b cells absorb antibodies. d. t cells absorb antibodies.
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Which of these best illustrates natural selection? *
The largest organisms in a species receive the...
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