Classification of Living Things — Unit test Answers

Fossils provide scientists with evidence that allows them to hypothesize how living organisms have evolved over time. Tiktaalik roseae was a unique organism that has been nicknamed the “fishapod” because it is believed to be a species had traits of both fish and tetrapods, the first four-legged animals.Which evidence would scientist use to make the connection between ancestry of fish and tetrapods using Tiktaalik roseae?

Which event is most likely if an index fossil is found in a layer at location 1, but the layer and index fossil are not found at location 2 nearby, which is known to be the same relative age?

In rock layers, jellyfish fossils are found lower than trilobite fossils, and trilobite fossils are found lower than ammonite fossils. What can be determined from this information?

What are the three domains of the modern classification system?

According to Darwin’s theory of evolution, in which order do the steps of natural selection happen?

Which is the correct written form of the scientific name that uses the rules of binomial nomenclature?

Which characteristic of potassium makes it useful for dating rocks?

Which statement describes the law of superposition?

Four students are trying to summarize how scientists classify organisms, and are discussing whose answer is best. This chart shows the four students’ attempts.

What did Darwin think about Earth and life while he was forming his theory of evolution?

Which statement accurately describes a half-life?

The diagram illustrates radioactive decay.

Darwin’s finches evolved on an island. What is the main reason that islands often provide good examples of evolution?

The image shows sedimentary rock layers.

Which is an example of temporal isolation?