BIO 243 FINAL EXAM PRACTICE QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
Which of the following conditions is not necessary for evolution to take
place in a population of organisms? Ans✓✓✓An overall goal that the
population is deliberately trying to reach
What critical piece of knowledge was Darwin missing when he
formulated his theory of evolution through natural selection?
Ans✓✓✓He did not know about Mendelian genetics
Bacteria are better than elephants for experimental studies of evolution
because... Ans✓✓✓bacteria have much shorter life cycles than
elephants, so we can study their evolution over thousands of generations
during the lifetime of a single scientist
What is the reason for the existence of vestigial structures (useless parts
of the body)? Ans✓✓✓They must have functioned in ancestral
organisms
As a young child, you preferred to collect shells and insects, dig through
the mud around a pond, and watch birds rather than play video games.
What did you have in common with Charles Darwin? Ans✓✓✓an
interest in natural history
, Extinct glyptodont and living nine-banded armadillos were related
according to Darwin. In what way are they related? Ans✓✓✓Glyptodont
is an ancestor and armadillo is a descendent
What was the basic truth of inheritance that had been known well before
Darwin's time? Ans✓✓✓Offspring frequently resemble their parents and
selective breeding improves domesticated plants and animals.
Which of the following is a correct interpretation of the wings of bats
and the wings of birds? Ans✓✓✓They are homologous because they
have a similar internal bone structure inherited from a common ancestor.
What are homologous traits? Ans✓✓✓characteristics that are similar in
two species because they inherited the genetic basis of the trait from
their common ancestor
Who proposed that species change through time? Ans✓✓✓Charles
Darwin, Jean Baptiste de Lamarck, and Alfred Russel Wallace
Which of these statements represents what Darwin thought of natural
selection? Ans✓✓✓He reasoned that if a person could select different
characteristics when breeding organisms, then nature could do so as well
If organisms have a huge capacity to reproduce, why aren't populations
of all organisms enormous? Ans✓✓✓Limited resources constrain the
size of any population
CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
ALREADY GRADED A+
Which of the following conditions is not necessary for evolution to take
place in a population of organisms? Ans✓✓✓An overall goal that the
population is deliberately trying to reach
What critical piece of knowledge was Darwin missing when he
formulated his theory of evolution through natural selection?
Ans✓✓✓He did not know about Mendelian genetics
Bacteria are better than elephants for experimental studies of evolution
because... Ans✓✓✓bacteria have much shorter life cycles than
elephants, so we can study their evolution over thousands of generations
during the lifetime of a single scientist
What is the reason for the existence of vestigial structures (useless parts
of the body)? Ans✓✓✓They must have functioned in ancestral
organisms
As a young child, you preferred to collect shells and insects, dig through
the mud around a pond, and watch birds rather than play video games.
What did you have in common with Charles Darwin? Ans✓✓✓an
interest in natural history
, Extinct glyptodont and living nine-banded armadillos were related
according to Darwin. In what way are they related? Ans✓✓✓Glyptodont
is an ancestor and armadillo is a descendent
What was the basic truth of inheritance that had been known well before
Darwin's time? Ans✓✓✓Offspring frequently resemble their parents and
selective breeding improves domesticated plants and animals.
Which of the following is a correct interpretation of the wings of bats
and the wings of birds? Ans✓✓✓They are homologous because they
have a similar internal bone structure inherited from a common ancestor.
What are homologous traits? Ans✓✓✓characteristics that are similar in
two species because they inherited the genetic basis of the trait from
their common ancestor
Who proposed that species change through time? Ans✓✓✓Charles
Darwin, Jean Baptiste de Lamarck, and Alfred Russel Wallace
Which of these statements represents what Darwin thought of natural
selection? Ans✓✓✓He reasoned that if a person could select different
characteristics when breeding organisms, then nature could do so as well
If organisms have a huge capacity to reproduce, why aren't populations
of all organisms enormous? Ans✓✓✓Limited resources constrain the
size of any population
