Unit 8 Evidence of Evolution Test Review

Front

What does having similar embryos indicate about organisms?

Back

Having similar embryos indicates that these organisms share a recent common ancestor.

Front

What is the significance of homologous structures in evolutionary biology?

Back

Homologous structures indicate evolutionary links between different species, showing they share a common ancestor.

Front

What are analogous structures?

Back

Analogous structures are body parts in different species that have similar functions but evolved independently due to similar environmental pressures.

Front

What type of information is most useful for determining the evolutionary relationship between species?

Back

The DNA sequences of the species are most useful for determining how closely related they are.

Front

Define evolution in biological terms.

Back

Evolution is the process through which species change over time through variations and natural selection.

Front

What is natural selection?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of an organism that lived in the past.

Front

What is the difference between homologous and analogous structures?

Back

Homologous structures share a common ancestry but may serve different functions, while analogous structures serve similar functions but do not share a common ancestry.

Front

What evidence supports the theory of evolution?

Back

Evidence for evolution includes fossil records, genetic similarities, and observable changes in species over time.

Front

What role do mutations play in evolution?

Back

Mutations introduce genetic variation, which can lead to new traits that may be beneficial for survival.