BIO 1112 - Exam 1 (Chapter 14-16)

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56 Questions - Developed by: - Developed on: - 15,130 taken

  • 1
    The picture below is from your textbook. Identify the structure below.
    The picture below is from your textbook. Identify the structure below.
  • 2
    Beta-lactam antibiotics work by:
  • 3
    Which of the following people are at the lowest risk of acquiring MRSA?

  • 4
    If we take the most fit bacterium from one environment-- one in which the antibiotic amoxicillin is abundant, for example-- and place it in an environment in which a different antibiotic is abundant, will it retain its high degree of fitness?
  • 5
    The evolution of antibiotic resistance is an example of
  • 6
    In humans, very-large-birth-weight babies and very tiny babies do not survive as well as midrange babies.

  • 7
    Birds that have either very big beaks, or very small beaks do best. Middle sized beaks are bad.
  • 8
    Among bull moose, bigger, stronger males always get to mate more frequently
  • 9
    If the cell wall of Staphylococcus aureus fails to form properly, water will
  • 10
    Binary fission is a form of

  • 11
    Which bacterial phenotype would have the highest fitness if it was culture in an environment containing lots of antibiotics?
  • 12
    An organism's fitness depends on its:
  • 13
    All of the following are true of natural selection EXCEPT
  • 14
    All of the following can decrease the spread of antibiotic-resistant bacterial strains EXCEPT
  • 15
    Manatees and dugongs generally inhabit an area
  • 16
    Founder effect describes a

  • 17
    Allele frequencies of a population can change by
  • 18
    This mechanism is NOT responsible for random changes in allele frequency in the gene pool of a population
  • 19
    A population of manatees has 12 different alleles, A through L, of a particular gene. A drunk motorboat driver recklessly tears through the water where the manatees live, killing 90% of them. The surviving manatees are all homozygous for allele B. What type of event is this?
  • 20
    A starting population of bacteria has two alleles of the TUB gene: T and t. The frequency of T is 0.8 and the frequency of t is 0.2. The local environment undergoes an elevated temperature for many generations of bacterial reproduction. After 50 generations of reproduction at the elevated temperature, the frequency of T is 0.4 and the frequency of t is 0.6. Has evolution occurred?

  • 21
    All of the following are typical for population that is in Hardy-Weinberg equilibrium, EXCEPT:
  • 22
    Which population would you expect to have the most genetic diversity?
  • 23
    The biological species concept defines a species
  • 24
    Frog species mate at different times of the year.
  • 25
    Mating rituals such as bird songs and dances.
  • 26
    Incompatibility of mating organs

  • 27
    Differing environments
  • 28
    Viable hybrid offspring cannot reproduce
  • 29
    Which of the following is most likely to leave a fossil?
  • 30
    Which of the following features of Tiktaalik is not shared with other bony fishes?

  • 31
    Why is Tiktaalik considered a transitional fossil?
  • 32
    What prevents fossilization of a dead organism?
  • 33
    Hardened tree sap that often contains fossilized organisms is called
  • 34
    Fossils found in sedimentary socks
  • 35
    All the following statements about fossil dating are true EXCEPT
  • 36
    The four-toes ancestor of the modern horse would have been well suited to life in the
  • 37
    Which statement about Tiktaalik is FALSE?
  • 38
    Which of the following statements about homology is TRUE?
  • 39
    Some snakes have small remnants of legs that they now use for clasping during mating. These leg remnants are
  • 40
    Which organism would have the move similar DNA to humans?
  • 41
    The descent with modification phrase used by Darwin has become a well-documented scientific theory called
  • 42
    One of the features which distinguishes tetrapods from their ancestors would be:
  • 43
    Imagine a manatee population of 100 animals, that has both chocolate and peanut butter alleles. If chocolate alleles have a frequency of p = 0.80, and peanut butter has a frequency of q = 0.20, then how many heterozygous manatees might you expect to find?
  • 44
    The accumulation of harmful recessive phenotypes, which can threaten a species' long-term survival is called
  • 45
    What was the name of the ship that carried Darwin on his voyage?
  • 46
    Which species is more energetically economical during walking: a human or chimpanzee?
  • 47
    What form of quadrupedalism do chimps employ?
  • 48
    According to the author of this article, which is the most natural kind of diet for humans?
  • 49
    How does meat from free-ranging animals differ from the meat from domesticated feedlot animals?
  • 50
    According to what you learned from the article, what statement would best describe our choice of lifestyle today?
  • 51
    As used in the article Scientific America, the astragalus is:
  • 52
    The picture below is a Packicetus
    The picture below is a Packicetus
  • 53
    Being marine fossils, early whales would most likely be found in what kind of rock?
  • 54
    The "order of mammals that comprises whales, dolphins and porpoises..."
  • 55
    What African mammal are whales most closely related to?
  • 56
    The sea which was important to early whale evolution, that stretched from Spain to Indonesia, no longer exists. It's name is:

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