EVOLUTION

The tail bone, wisdom teeth, and appendix are all parts of the human anatomy that would be considered...

• homologous structures

• vestigial structures

• fossils

• extinct

The tail bone, wisdom teeth, and appendix are all parts of the human anatomy that would be considered..

• homologous structures

• vestigial structures

• fossils

• extinct

Evolutionary biologists say that similarities between different species are evidence of which of the following?

• Organs shrinking and losing their function

• Formation of the first cell in an organic soup

• The presence of a common ancestor in a species

• The concept that life comes only from life

The process by which populations slowly change over time is called

• selective breeding

• adaptation

• speciation

• evolution

A bird's wing and a butterfly's wing have the same function, but they have very different structures. These structures are classified as follows:

• homologous structures

• analogous structures

• vestigial structures

• embryological homologues

Which of the following statements best explains the Theory of Natural Selection?

• Acquired characteristics of parents can be passed on to offspring.

• Organs that are not used may disappear, while organs that are constantly used may develop.

• In nature, the organism with desirable characteristics may survive, while those with weaker traits may not.

• Organisms develop desirable structures to survive in a given environment.

The arm of a human, the flipper of a whale, and the wing of a bat all have similar bone structures. Therefore, these parts of the body would all be considered...

• homologous structures

• vestigial structures

• transitional fossils

• common ancestors

According to evolutionists, which is the best test to show the relatedness of two organisms?

• Similarity in embryological development

• Similarity in feeding behavior

• Similarity in structure

• Similarity of amino acid sequence in DNA

If a parent acquires a body structure during its lifetime, it could pass on that characteristic structure to its offspring.

• Theory of Acquired Characteristics

• Theory of Need

• Theory of Evolution

• Theory of Use and Disuse

Two organisms that are closely related would have

• very similar DNA sequence

• exactly the same DNA sequences

• no proteins in common

• completely different DNA sequence