BIO120 Midterm 2 Questions and Answers
Question 1.
Why may chemotherapy not be recommended?
Correct Answer: -Strong, prolonged selection pressures using the same drugs
selects for resistance -Cycling drugs/ lowering does of drugs is better option
Question 2.
Coriolic Effect
Correct Answer: The apparent deflection of moving air, as seen by an observer
on Earth Objects including hurricanes deflect EASTWARDS as they move away
from the equator and WEST as they move towards from the equator
Question 3.
How can herbicide resistance be stopped?
Correct Answer: 1) Multi-Herbicide treatment 2) Rotations of different
herbicides
Question 4.
Alred Wallace (1876)
Correct Answer: -Noticed distributions of animals, plants, microbes across the
globe -Divided regions on earth based on mammal fauna
Question 5.
How does the Earth's tilt affect how sunlight is directed
Correct Answer: Higher latitude: Lower angle= greater area Lower latitude:
Higher angle= smaller area
Question 6.
Hutchinsonian Niche Concept
Correct Answer: The niche is an "dimensional hyper volume" in which each axis
is an "ecological factor" important to species being considered Middle dark part
of the organism's optimum value of the two gradients
, Question 7.
What is done to prevent evolution of resistance in HIV patients? Cancer?
Correct Answer: Multiple drugs are used Cycles of drugs are used
Question 8.
Where is precipitation heavy, where does it condense? due to what factors?
Correct Answer: - evaporation is high from warm bodies of water - Prevailing
winds - Orographic precipitation: air forced up mountains undergoes cooling,
precipitates on upper windward slopes - rain shadows creased on slopes of
mountain ranges - seasonality of moisture
Question 9.
Allen's Rule
Correct Answer: mammals living in the cold have shorter faces and limbs than
mammals living in warmer areas / Homeotherms have smaller appendages at
higher, colder altitudes
Question 10.
What are the 4 modes of heat gain/loss
Correct Answer: Radiation- heat transfer by electromagnetic radiation
Conduction- transfer mediated by moving fluid (usually air/ water) Evaporation-
efficient cooling from wet surfaces Redistribution-circulatory system
redistributes heat among body parts (esp core and appendix)
Question 11.
How does speciation occur
Correct Answer: -populations diverge and diversify through natural differences,
and become more reproductively isolated -Allows speciation to occur as
populations being evolving and adapting independently -Accidental long
distance dispersal
Question 12.
Study: evolution of herbicide Resistance in Waterhamp: Weeds in Ontario are similar to
those in Kansas.
Correct Answer: Some type of long distance dispersal has occurred
Question 13.
How does latitude affect the biome?
Correct Answer: Temperature is mostly a function of latitude - Higher latitude=
seasonality is a function of temperature -Lower latitude= seasonality is a
function of rainfall
Question 14.
Consumer resource interaction
Correct Answer: An interaction that has a positive effect on one and negative
eon the other
Question 15.
Taxonomy
Correct Answer: The science of classifying organisms
Question 1.
Why may chemotherapy not be recommended?
Correct Answer: -Strong, prolonged selection pressures using the same drugs
selects for resistance -Cycling drugs/ lowering does of drugs is better option
Question 2.
Coriolic Effect
Correct Answer: The apparent deflection of moving air, as seen by an observer
on Earth Objects including hurricanes deflect EASTWARDS as they move away
from the equator and WEST as they move towards from the equator
Question 3.
How can herbicide resistance be stopped?
Correct Answer: 1) Multi-Herbicide treatment 2) Rotations of different
herbicides
Question 4.
Alred Wallace (1876)
Correct Answer: -Noticed distributions of animals, plants, microbes across the
globe -Divided regions on earth based on mammal fauna
Question 5.
How does the Earth's tilt affect how sunlight is directed
Correct Answer: Higher latitude: Lower angle= greater area Lower latitude:
Higher angle= smaller area
Question 6.
Hutchinsonian Niche Concept
Correct Answer: The niche is an "dimensional hyper volume" in which each axis
is an "ecological factor" important to species being considered Middle dark part
of the organism's optimum value of the two gradients
, Question 7.
What is done to prevent evolution of resistance in HIV patients? Cancer?
Correct Answer: Multiple drugs are used Cycles of drugs are used
Question 8.
Where is precipitation heavy, where does it condense? due to what factors?
Correct Answer: - evaporation is high from warm bodies of water - Prevailing
winds - Orographic precipitation: air forced up mountains undergoes cooling,
precipitates on upper windward slopes - rain shadows creased on slopes of
mountain ranges - seasonality of moisture
Question 9.
Allen's Rule
Correct Answer: mammals living in the cold have shorter faces and limbs than
mammals living in warmer areas / Homeotherms have smaller appendages at
higher, colder altitudes
Question 10.
What are the 4 modes of heat gain/loss
Correct Answer: Radiation- heat transfer by electromagnetic radiation
Conduction- transfer mediated by moving fluid (usually air/ water) Evaporation-
efficient cooling from wet surfaces Redistribution-circulatory system
redistributes heat among body parts (esp core and appendix)
Question 11.
How does speciation occur
Correct Answer: -populations diverge and diversify through natural differences,
and become more reproductively isolated -Allows speciation to occur as
populations being evolving and adapting independently -Accidental long
distance dispersal
Question 12.
Study: evolution of herbicide Resistance in Waterhamp: Weeds in Ontario are similar to
those in Kansas.
Correct Answer: Some type of long distance dispersal has occurred
Question 13.
How does latitude affect the biome?
Correct Answer: Temperature is mostly a function of latitude - Higher latitude=
seasonality is a function of temperature -Lower latitude= seasonality is a
function of rainfall
Question 14.
Consumer resource interaction
Correct Answer: An interaction that has a positive effect on one and negative
eon the other
Question 15.
Taxonomy
Correct Answer: The science of classifying organisms
