BIO 1001 EXAM 5 QUESTIONS AND 100%
VERIFIED CORRECT ANSWERS!!
Who first proposed the idea of natural selection as a mechanism for evolution?
Charles Darwin
Who was the first scientist to state that species change over time?
Comte de Buffon
Which of the following experiments might disprove the "inheritance of acquired
characteristics"?
- Separate black mice from white mice. Breed black mice together and white mice together
and show that children resemble their parents in color.
-Separate male mice from female mice. Race the male mice down a track. Only allow the
fastest males to breed with the females. Show that the male children are no faster than
their parents.
-Measure the tail lengths of a population of mice. Cut the tails off and then let them breed.
Show that the children's tails are no shorter than their parents' tails.
-Take a population of white mice. Dye the hair of the mice black and show that their
children are still born with white hair.
-Separate male mice from female mice. Allow males to attack one another to prove
dominance. Only allow the dominant males to breed with the females. Show that the male
children are no more aggressive than their parents.
Measure the tail lengths of a population of mice. Cut the tails off and then let them breed. Show
that the children's tails are no shorter than their parents' tails.
,This would show that losing use of the tail has no effect on the length of the tail in a future
generation.
Which of the following did Darwin observe during his time in the Galapagos Islands?
-penguins that used their wings for paddles while swimming
-the presence of vestigial organs in human anatomy
-different finch populations that appeared closely related
-fossils of extinct species of reptiles and lizards
-snakes with evidence of vestigial legs
different finch populations that appeared costly related
Why was credit for the discovery of natural selection given to Charles Darwin and not
Alfred Wallace?
Darwin published a book in addition to presenting his paper on natural selection.
Both Lamarck and Darwin proposed mechanisms to explain how evolution occurs. What
was different about these mechanisms?
Lamarck focused on genetic changes in an individual. Darwin focused on genetic changes in a
population.
Which of the following observations by other scientists would have helped Lamarck to
form a better mechanism for evolution than inheritance of acquired traits?
Mendel's observation that genes are passed unchanged from parent to offspring
According to Darwin's natural selection, what is the smallest unit of evolution?
,population
Smallest unit to evolve. An individual cannot evolve, and a species is multiple populations.
The human appendix is a tiny vestigial form of the cecum, a long tube in the intestines of
many mammals, used for digesting plant matter. Why did this structure shrink in size
during human evolution?
There must have been an advantage to humans in having a smaller cecum.
What kind of structures is produced by convergent evolution?
analogous structures
come from two independent evolutionary lines arriving at a similar structure
A few of your friends are speculating about what humans will look like in the future. They
know you're taking a biology class, so they ask you how human evolution will proceed in
the next few centuries. How do you answer?
Any traits that result in a human having more children will be increased in the population
Remember that the only traits that increase in frequency are those that result in more offspring.
Which of the following can be used to show the gradual evolution of aquatic mammals
from land-dwelling mammals?
fossils
, What is the relationship between the structures that form the gill pouches on human and
fish embryos?
homologous structures
Which of the following answers is the most ancient homologous feature of all life?
DNA as genetic material
The evolution of different beak sizes on finches in the Galapagos Islands is most similar to
which of the following evolutionary events?
change in leg length of transplanted Anole lizards
What event has caused a shift in the developmental cycle of the mosquito?
global warming
Which of the following is necessary for evolution to occur?
-Population genetics must change.
-Artificial selection must occur.
-Adaptation to the environment must occur.
-Change must occur to the environment.
-Variation must exist.
Variation must exist
Without variation in a population, survival and reproduction would be random.
In what way did the guppies in Trinidad help to support evolution?
VERIFIED CORRECT ANSWERS!!
Who first proposed the idea of natural selection as a mechanism for evolution?
Charles Darwin
Who was the first scientist to state that species change over time?
Comte de Buffon
Which of the following experiments might disprove the "inheritance of acquired
characteristics"?
- Separate black mice from white mice. Breed black mice together and white mice together
and show that children resemble their parents in color.
-Separate male mice from female mice. Race the male mice down a track. Only allow the
fastest males to breed with the females. Show that the male children are no faster than
their parents.
-Measure the tail lengths of a population of mice. Cut the tails off and then let them breed.
Show that the children's tails are no shorter than their parents' tails.
-Take a population of white mice. Dye the hair of the mice black and show that their
children are still born with white hair.
-Separate male mice from female mice. Allow males to attack one another to prove
dominance. Only allow the dominant males to breed with the females. Show that the male
children are no more aggressive than their parents.
Measure the tail lengths of a population of mice. Cut the tails off and then let them breed. Show
that the children's tails are no shorter than their parents' tails.
,This would show that losing use of the tail has no effect on the length of the tail in a future
generation.
Which of the following did Darwin observe during his time in the Galapagos Islands?
-penguins that used their wings for paddles while swimming
-the presence of vestigial organs in human anatomy
-different finch populations that appeared closely related
-fossils of extinct species of reptiles and lizards
-snakes with evidence of vestigial legs
different finch populations that appeared costly related
Why was credit for the discovery of natural selection given to Charles Darwin and not
Alfred Wallace?
Darwin published a book in addition to presenting his paper on natural selection.
Both Lamarck and Darwin proposed mechanisms to explain how evolution occurs. What
was different about these mechanisms?
Lamarck focused on genetic changes in an individual. Darwin focused on genetic changes in a
population.
Which of the following observations by other scientists would have helped Lamarck to
form a better mechanism for evolution than inheritance of acquired traits?
Mendel's observation that genes are passed unchanged from parent to offspring
According to Darwin's natural selection, what is the smallest unit of evolution?
,population
Smallest unit to evolve. An individual cannot evolve, and a species is multiple populations.
The human appendix is a tiny vestigial form of the cecum, a long tube in the intestines of
many mammals, used for digesting plant matter. Why did this structure shrink in size
during human evolution?
There must have been an advantage to humans in having a smaller cecum.
What kind of structures is produced by convergent evolution?
analogous structures
come from two independent evolutionary lines arriving at a similar structure
A few of your friends are speculating about what humans will look like in the future. They
know you're taking a biology class, so they ask you how human evolution will proceed in
the next few centuries. How do you answer?
Any traits that result in a human having more children will be increased in the population
Remember that the only traits that increase in frequency are those that result in more offspring.
Which of the following can be used to show the gradual evolution of aquatic mammals
from land-dwelling mammals?
fossils
, What is the relationship between the structures that form the gill pouches on human and
fish embryos?
homologous structures
Which of the following answers is the most ancient homologous feature of all life?
DNA as genetic material
The evolution of different beak sizes on finches in the Galapagos Islands is most similar to
which of the following evolutionary events?
change in leg length of transplanted Anole lizards
What event has caused a shift in the developmental cycle of the mosquito?
global warming
Which of the following is necessary for evolution to occur?
-Population genetics must change.
-Artificial selection must occur.
-Adaptation to the environment must occur.
-Change must occur to the environment.
-Variation must exist.
Variation must exist
Without variation in a population, survival and reproduction would be random.
In what way did the guppies in Trinidad help to support evolution?
