Evolution Practice Test Flashcards
Which of the following is NOT an example of a vestigial structure?
wing of a bee
Where are most fossils found?
in sedimentary rock
which of the following is true?
populations of organisms evolve
Variations caused by the environment:
cannot be passed on to offspring, are called acquired traits
Which of the following is a body part with the same basic structure but with a different function?
homologous
Adaptations occur because:
some organisms are born with beneficial traits
Differences between organisms are known as:
variations
A change in the genetic make up of a population over time is called:
biological evolution
Which of the following is a body part with the same basic function but with different structure?
Analogous
The environment:
causes organisms to adapt to the environment, selects the most beneficial traits that were already present in the organism
Comparative biochemistry compares:
amino acid sequences
A trait that gives an organism an advantage is called a/an:
adaptation
Which of the following structures does NOT suggest a common ancestry?
analogous
A birds wing and a human arm are examples of __________ structures.
homologous
In comparative biochemistry, the more nucleotide differences between organisms, the:
more distantly related the organisms
Which of the following statements best defines Darwin’s theory of evolution?
individuals that are better adapted to the environment survive
Which of the following statements best corresponds to the process of evolution as viewed by modern scientists?
genetic traits are passed on to offspring
What does natural selection mean?
environment determines which organisms can survive and reproduce
Why is variation important to the theory of evolution proposed by Darwin?
because there will be more characteristics for nature to select from
According to Darwin’s theory, what determines whether a variation is favorable or unfavorable?
the environment
What type of variations can be passed on to offspring?
gametic
