BSC 1005 Unit 2 Lecture Questions with verified
answers
Acquired immunity is when the immune system __________ and
____________.
A. Indiscriminately attacks pathogens; is only found in vertebrates
B. Ignores pathogens; is only found in invertebrates
C. Indiscriminately attacks pathogens; is found in all organisms
D. Develops a response to specific pathogens; remembers them
Ans✓✓✓ D
Blank Ans✓✓✓ Blank
Choose all the processes that increase biodiversity:
A. stabilizing selection
B. disruptive selection
C. speciation
D. artificial selection (selective breeding) Ans✓✓✓ B, C
Deforestation through logging can affect biodiversity through which
types of impact? (choose all that apply)
A. direct exploitation
B. habitat destruction/alteration
C. increasing erosion
, D. opening niches that invasive species could move into Ans✓✓✓ A, B,
C, D
Ecological niches promote ________ biodiversity in an area.
A. greater
B. less
C. the same amount of Ans✓✓✓ A
Ecology contributes to biodiversity because
A. climates around the world are so variable that there are just so many
different organisms
B. populations in different environments adapt to the specific
environmental conditions causing them to evolve and persist
C. ecology isn't a source of biodiversity because different areas of the
world can have similar climates Ans✓✓✓ B
Evolution is
A. the change in a trait due to the change in allele frequencies over
time.
B. the improvement of species over time Ans✓✓✓ A
How do we define a species?
A. A population of individuals which look physically (phenotypically) the
same
answers
Acquired immunity is when the immune system __________ and
____________.
A. Indiscriminately attacks pathogens; is only found in vertebrates
B. Ignores pathogens; is only found in invertebrates
C. Indiscriminately attacks pathogens; is found in all organisms
D. Develops a response to specific pathogens; remembers them
Ans✓✓✓ D
Blank Ans✓✓✓ Blank
Choose all the processes that increase biodiversity:
A. stabilizing selection
B. disruptive selection
C. speciation
D. artificial selection (selective breeding) Ans✓✓✓ B, C
Deforestation through logging can affect biodiversity through which
types of impact? (choose all that apply)
A. direct exploitation
B. habitat destruction/alteration
C. increasing erosion
, D. opening niches that invasive species could move into Ans✓✓✓ A, B,
C, D
Ecological niches promote ________ biodiversity in an area.
A. greater
B. less
C. the same amount of Ans✓✓✓ A
Ecology contributes to biodiversity because
A. climates around the world are so variable that there are just so many
different organisms
B. populations in different environments adapt to the specific
environmental conditions causing them to evolve and persist
C. ecology isn't a source of biodiversity because different areas of the
world can have similar climates Ans✓✓✓ B
Evolution is
A. the change in a trait due to the change in allele frequencies over
time.
B. the improvement of species over time Ans✓✓✓ A
How do we define a species?
A. A population of individuals which look physically (phenotypically) the
same
