Download THQ #16 Darwin`s Theory of Evolution Read the chapter FIRST, then

THQ #16
Darwin’s Theory of Evolution
Read the chapter FIRST, then answer the questions
Darwin noticed that many organisms seemed well suited to
a. being preserved as fossils.
b. providing humans with food.
c. surviving in the environments in which they lived.
d. swimming from South America to the Galápagos Islands.
Based on the adaptations Charles Darwin observed in finches and tortoises in the Galápagos, he
wondered
a. if species living on different islands had once been members of the same species
b. if finches and tortoises had originated from the same ancestral species.
c. if all birds on the different islands were finches.
d. why all tortoises on the different islands were identical.
Which characteristic of Galápagos finches helped the
Grants show the results of natural selection?
a. the color of their feathers
b. the length and shape of their wings
c. the size and shape of their beaks
d. the curve of their claws
Which of the following ideas is supported by Darwin’s observation of local variation among
tortoises in the Galápagos Islands?
a. artificial selection c. acquired characteristics
b. adaptation
d. tendency towards perfection
Lamarck’s ideas about evolution include the concept that differences among the traits of
organisms arise as a result of
a. continual increases in population size.
b. the actions of organisms as they use or fail to use body structures.
c. an unchanging local environment.
d. the natural variations already present within the population of organisms.
When a dairy farmer chooses to breed the cows that give the most milk in the herd, the farmers
are following the principle of
a. acquired characteristics.
c. artificial selection.
b. descent with modification.
d. natural selection.
Each of the following is a condition necessary for natural selection to occur EXCEPT
a. more offspring are born than can survive.
b. population size is very large.
c. fitness varies among individuals.
d. there is heritable variation among members of the population.
Which statement about the members of a population that live long enough to reproduce is
consistent with the theory of evolution by natural selection?
a. They transmit characteristics acquired by use and disuse to their offspring.
b. They tend to produce fewer offspring than others in the population.
c. They are the ones that are best adapted to survive in their environment.
d. They will perpetuate unfavorable changes in the species.
Charles Darwin viewed the fossil record as
a. evidence that Earth was very young.
b. useful support for his theory.
c. interesting but unrelated to the evolution of modern species.
d. evidence that traits are acquired through use or disuse.
d. belong to the same species as sea stars.
Molecular evidence in support of natural selection includes
a. the nearly universal genetic code.
b. the presence of vestigial structures.
c. a tendency toward perfect, unchanging DNA in various species.
d. the transmission of acquired characteristics by DNA.