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Which of the following statements is FALSE regarding the conclusions Darwin reached after his voyage of exploring the natural world?

The figure shows the results of an experiment where sea stars were removed from communities. What is the effect of sea stars on barnacle A?

The Permian mass extinction is associated with ________.

The present rate of species loss ________.

Why is it INCORRECT to assume that mass extinctions carry only negative impact on the evolution of life on Earth?

Which phenomenon (or lack of) will prevent significant genetic drift?

The figure indicates that ________.

In the food chain grass → antelope → human → lion, the antelope is ________.

Islands provide great evidence for speciation because:

Read the following scenario to answer the following questions.Over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. Scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. However, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. These global declines suggest widespread problems, including increased ultraviolet radiation, acid rain, and disease. In Switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction.Some biologists urge the collection of the few remaining individuals of some of the most threatened amphibian species in order to preserve them if they become extinct in the wild. If such captive-breeding programs could produce thousands of individuals from just a few of the remaining survivors, the species will still be threatened because of ________.