Unit 1 Flashcards
Which characteristic of populations and genes are mismatched?
gene flow::makes populations more similar
allypolyploidy::hybridization
inbreeding depression::after bottleneck
postzygotic::miscarriage
none of the above is mismatched
none of the above is mismatched
Stink bugs live in a temperate forest. Stink bugs that are too smelly do not typically find mates, and therefore are much less likely to reproduce. However, stink bugs that aren’t smelly enough often get eaten by birds. Which kind of selection does this example represent?
stabilizing
disrupting
allopatric
polyploidy
directional
stabilizing
Which area is likely to have colder water currents?
The coast of New England
The west coast of South America
The east coast of Africa
The Indian Ocean
The north coast of Australia
The west coast of South America
I am visiting Brazil to study different types of species in the Amazon rainforest. I go into the forest on a windy day. What type of winds am I experiencing?
Westerlies
Northeast trade winds
Easterlies
Southeast trade winds
Northwest winds
Southeast trade winds
The class takes a field trip to White Clay Creek State Park to observe Alfie, the park’s watch hawk. What type of ecology would we be studying?
physiological ecology
population ecology
community ecology
ecosystem ecology
global ecology
physiological ecology
No analog communities
are common in the Cape Floristic province
are groups of species that coexisted in the past but are no longer found
are groups of species that are only found in limited locations and nowhere else
are those that cannot be recreated under any conditions
none of these answers are correct
are groups of species that coexisted in the past but are no longer found
For which of these would it be most difficult to support their migration?
a lowland tropical lizard
a small migratory bird
a marine fish
a butterfly with N-S oriented geographic range
a salamander living near a mountaintop
a salamander living near a mountaintop
Which of the following statements is false?
fires can be a useful tool in aiding migration of species
introduced species are always negative and should never be protected
genetic manipulation by interbreeding individuals from opposite ends of a species’ N-S range can facilitate the migration of climate stressed species
all of these statements are false
none of these statements are false
introduced species are always negative and should never be protected
Biological communities
are naturally long lasting and resilient to change
have responded to similar rates of change throughout history
are naturally ephemeral, adjusting to changes
are expected to migrate relatively intact to new habitats although missing a a few currently endangered species
none of these answers are correct
are naturally ephemeral, adjusting to changes
Which of the following species has become a problem following its introduction into a new location?
protea flower species
black locust trees
porcupine grass
pinion pine trees
blue oak trees
black locust trees
With the climate changing to warmer, drier conditions:
species African savanna that consumed C4 plants became more successful
African savannahs contracted (shrank)
plants that used more C12 displaced those that used mostly C13
none of the above
species African savannah that consumed C4 plants
Identify the mismatched pair:
savanna hypothesis::generally believed incorrect
modern Americans::dominantly C3 diet
drier conditions::savanna
complex stone tools::Homo species
African climate::continuous swings between wetter and drier climate
modern Americans::dominantly C3 diet
Variability selection refers to
a success of species with greater variability in their populations
another way of thinking about disruptive selection, creating more variability in species
the hypothesis that link adaptive change to large degrees of environmental variability
choosing to live in an environment that has wide and unpredictable swings in conditions
none of the above
the hypothesis that link adaptive change to large degrees of environmental variability
Which of the following doesn’t belong?
higher abundance of carbon12
C4 photosynthesis
expanding grasslands
warm, drier conditions
all of these belong
higher abundance of carbon12
Future scientists looking at remains of present day humans and their lifestyles should find:
a prevalence of C4 species in our diets
a lack of variability in humans as a whole as technology has taken over the need to adapt
heavier, more robust teeth than in the past
all of the above
none of the above
a prevalence of C4 species in our diets
Which of the following does NOT match a tropical forest biome?
warm
receives abundant sunlight
abundant amounts of rain (especially during equinoxes)
high plant and animal species numbers
pronounced winter dry seasons
all of these match
all of these match
What are characteristics that match those of a savanna?
warm and dry, with random bursts of rain once every few weeks
warm and receive a good amount of precipitation, but also have a prolonged dry period with tall grasses and drought resistant trees
cool and dry, with tall trees and brisk winters
temperate, with deciduous forests
warm, wet, but prolonged dry period
