Lab Flashcard - Semester Review

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Vestigial structures

Back

Structures that seem to have no apparent use, but provide evidence of some past function.

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Geologic time scale

Back

A relative measure created by geologists using fossils and geologic assumptions.

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Radioactive dating

Back

A method primarily used in igneous rocks to determine the age of materials.

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Blood

Back

The only type of connective tissue in which collagen is not secreted.

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Analogous structures

Back

Structures that have the same function but are not derived from a common ancestor.

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Homologous structures

Back

Structures that are similar in different species due to shared ancestry.

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Sedimentary rocks

Back

Rocks formed by the accumulation of sediments, often containing fossils.

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Igneous rocks

Back

Rocks formed from the solidification of molten material (magma or lava).

Front

Collagen

Back

A protein that provides structure and strength to connective tissues.

Front

Fossils

Back

Preserved remains or traces of ancient organisms, used to study past life.