Topic Test Answers

Charles Darwin spent over 20 years developing his theory of natural selection.

Organisms do not adapt as a result of competition for resources.

The proper order, from smallest to largest, for the levels of organization is _______.a.population, community, organism, biome, ecosystem, biosphereb.organism, community, population, ecosystem, biome, biospherec.biosphere, biome, ecosystem, community, population, organismd.organism, population, community, ecosystem, biome, biosphere

Which of the following has the most biomass?a.quaternary consumersb.secondary consumersc.primary consumersd.producers

What distinguishes the savanna and grassland biomes?a.woody plantsb.large predatorsc.seasonal precipitationd.herds of herbivores