BIO 200 EXAM 3 QUESTIONS WITH VERIFIED
ANSWERS
Which of the following levels of Linneaus' system would have members that are the
most similar?
a. Family
b. Kingdom
c. Phylum
d. Order
e. Class - Answers - a. Family
In plants, the _______________ produces gametes via _______________.
a. Sporophyte; mitosis
b. Gametophyte; mitosis
c. Gametophyte; meiosis
d. Sporophyte; meiosis
e. Zygote; fertilization - Answers - b. Gametophyte; mitosis
Analogous traits are similar due to:
a. Disruptive selection
b. Stabilizing selection
c. Divergent evolution
d. Convergent evolution
e. Parapatry - Answers - d. Convergent evolution
Bacterial sex is called:
a. Coupling
b. Conjugation
c. Declension
d. Fission
e. Fusion - Answers - b. Conjugation
What was Darwin's contribution to science?
a. He was the first to suggest that evolution occurred
b. He was able to document evolution by sailing around the world
c. He proposed that populations evolved by natural selection
d. He comprehensively described how fossils form
e. He emphasized that nothing in biology makes sense except in the light of evolution -
Answers - c. He proposed that populations evolved by natural selection
Malaria is caused by what kind of organism?
a. Protist
b. Nematode
c. Flatworm
, d. Annelid
e. Bacteria - Answers - a. Protist
Speciation involves the cessation of:
a. Mutation
b. Genetic drift
c. Evolution
d. Gene flow
e. Natural selection - Answers - d. Gene flow
Anthrax (Bacillus anthracis) was used in the bio-terrorist attacks in 2001. Based on its
name, what shape does anthrax have?
a. Cone
b. Cube
c. Sphere
d. Spiral
e. Rod - Answers - e. Rod
Which of the following is NOT a necessary condition of natural selection?
a. A trait must be heritable
b. A trait must contribute to greater survivorship
c. A trait must be variable
d. A trait must contribute to greater reproductive output
e. All of the above are necessary for natural selection to occur - Answers - b. A trait
must contribute to greater survivorship
Organisms that live in very hostile habitats (extremophiles) likely belong to which
group?
a. Archaea
b. Protista
c. Fungi
d. Bacteria
e. Protista - Answers - a. Archaea
Which of the following processes is more pronounced in small populations than large
populations?
a. Gene flow
b. Allopatric speciation
c. Adaptive radiation
d. Genetic drift
e. Directional selection - Answers - d. Genetic drift
Which of the following organisms contain plasmids?
a. Plants
b. Fungi
c. Nematodes
ANSWERS
Which of the following levels of Linneaus' system would have members that are the
most similar?
a. Family
b. Kingdom
c. Phylum
d. Order
e. Class - Answers - a. Family
In plants, the _______________ produces gametes via _______________.
a. Sporophyte; mitosis
b. Gametophyte; mitosis
c. Gametophyte; meiosis
d. Sporophyte; meiosis
e. Zygote; fertilization - Answers - b. Gametophyte; mitosis
Analogous traits are similar due to:
a. Disruptive selection
b. Stabilizing selection
c. Divergent evolution
d. Convergent evolution
e. Parapatry - Answers - d. Convergent evolution
Bacterial sex is called:
a. Coupling
b. Conjugation
c. Declension
d. Fission
e. Fusion - Answers - b. Conjugation
What was Darwin's contribution to science?
a. He was the first to suggest that evolution occurred
b. He was able to document evolution by sailing around the world
c. He proposed that populations evolved by natural selection
d. He comprehensively described how fossils form
e. He emphasized that nothing in biology makes sense except in the light of evolution -
Answers - c. He proposed that populations evolved by natural selection
Malaria is caused by what kind of organism?
a. Protist
b. Nematode
c. Flatworm
, d. Annelid
e. Bacteria - Answers - a. Protist
Speciation involves the cessation of:
a. Mutation
b. Genetic drift
c. Evolution
d. Gene flow
e. Natural selection - Answers - d. Gene flow
Anthrax (Bacillus anthracis) was used in the bio-terrorist attacks in 2001. Based on its
name, what shape does anthrax have?
a. Cone
b. Cube
c. Sphere
d. Spiral
e. Rod - Answers - e. Rod
Which of the following is NOT a necessary condition of natural selection?
a. A trait must be heritable
b. A trait must contribute to greater survivorship
c. A trait must be variable
d. A trait must contribute to greater reproductive output
e. All of the above are necessary for natural selection to occur - Answers - b. A trait
must contribute to greater survivorship
Organisms that live in very hostile habitats (extremophiles) likely belong to which
group?
a. Archaea
b. Protista
c. Fungi
d. Bacteria
e. Protista - Answers - a. Archaea
Which of the following processes is more pronounced in small populations than large
populations?
a. Gene flow
b. Allopatric speciation
c. Adaptive radiation
d. Genetic drift
e. Directional selection - Answers - d. Genetic drift
Which of the following organisms contain plasmids?
a. Plants
b. Fungi
c. Nematodes
