Over a long period of time, helpful variations in a species replace the unfavorable ones. This change can lead toGroup of answer choicesgenetic mutations.fossilization.geographic isolation.evolution.

Gradual genetic changes in organisms from an ancestral species describesMultiple choice question.coevolution in similar habitats.descent with modification.artificial selection based on specific traits.

The modern evolutionary synthesis connects natural selection andMultiple choice question.artificial selection.discoveries that fill gaps in fossil record.genetic variation that arises by mutation.the ideas of spontaneous generation.

Evolution through natural selection states that:Group of answer choicesspecies adapt and change over time based on pressure within their niche.an individual can change their genes within their own lifetime.species adapt based on their individual goals.individuals determine their own biological adaptations by trying hard enough they can succeed and base their altered genes on to their offspring.

Animals that possess homologous structures probably ____________________.Group of answer choicesare headed for extinctionhave increased genetic diversityby chance had similar mutations independently in the pastevolved from the same ancestor

Analogous structures may representMultiple Choiceconvergent evolution.genetic drift.divergent evolution.disruptive selection.