Which of the following is a clue that something is pseudoscience? A
the presence of empirical evidence

B
the use of a famous athlete for support

C
the support of a respected scientist

D
the use of the scientific method

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Which property is used to identify the origin of an igneous rock? color density hardness crystal size

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. examine the two squirrel populations in the accompanying figure. the populations are separated by a geographic barrier. if after a long period of time the two species are no longer separated, what evidence is needed to determine if speciation has occurred? the figure shows two populations of squirrels separated by a geographic barrier. polyploidy is creating new species. the two populations are not interbreeding freely. hybrid offspring of the two populations begin to appear. one species will increase into a population size twice as large as the other species.