Living Environment Regents Practice Test 2025 – The All-in-One Guide to Exam Success!

Question: 1 / 400

What does "speciation" mean?

The extinction of a species

The introduction of a new species to an ecosystem

The formation of new and distinct species in the course of evolution

Speciation refers to the process through which new and distinct species arise as a result of evolutionary changes. This process can occur due to various factors such as geographic isolation, genetic divergence, and different selection pressures in separate environments. Over time, these changes accumulate, resulting in populations that can no longer interbreed, thus leading to the formation of new species.

Understanding speciation is vital in the study of evolution as it helps explain the diversity of life on Earth. The other concepts, such as extinction, introduction of new species, or adaptation to environments, do not encompass the full biological process of speciation, which specifically involves the emergence of new species rather than changes to existing ones.

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The adaptation of a species to its environment

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