Bio 200 Final Exam Questions and
Answers
Lake effect snow - ANSWER-Produced in winter when cold winds warmer lake
water. Water will stay warmer longer than air. Bring lots of snow.
-Factors that lead to local variation in climate
El nino - ANSWER--Less predictable global effects on climate
-The flow of current reverse so warm and cold water flows to South America
La Nina - ANSWER--Less predictable global effects on climate
-Cold water currents reach farther west (Reverse Nino)
Pacific decadal oscillation - ANSWER--Less predictable global effects on climate
-Shift in surface temperature of worth pacific
-Switch between cold and warm phases
-effects climate
Stochasticity - ANSWER-Process outcomes cannot always be predicted
Convergence in traits and habitats - ANSWER--powerful force
-evidence at all levels in the tree of life
-explains why our certain habitat is recognizable to us
Biomes - ANSWER--very large regions of the earth whose distribution depends on
the amount of Temperature and Rainfall
Tundra - ANSWER-Found in arctic at high elevations
-Vegetation is low in arctic tundra
-permafrost
-frozen desert
-insects are abundant
-reindeer, caribou, arctic wolves, arctic foxes, arctic hares, polar bears
Tropical Rain Forest - ANSWER--Found near the equator with abundant rainfall,
stable temperatures, and high humidity
-most diversity
-dominant trees are very tall
Desert - ANSWER--most extreme temperature fluctuations
-drought resistant cactus
-most animals are active at night when heat is no longer intense
-rodents, kangaroos, rats, snakes, lizards, insects, spiders
, Temperate Grassland - ANSWER--Covers huge areas
-Characterized by low total annual rainfall
-grazing mammals: bison, gazelle, rodents
Temperate Deciduous Forest - ANSWER--Characterized by trees that drop their
leaves for the winter
-Found in North America
-Vertical Stratification
-deer, foxes, bears
(Buffalo is one)
Conifer Forest- Taiga - ANSWER--located in northern Canada
-dominated by conifer (evergreen) forests
-dotted with lakes, ponds and bogs
-very cold winters
-largest terrestrial biome
-heavy snowfall
-large mammas; bear, moose, wolverines
Why don't biome boundaries exactly match species range boundaries? - ANSWER-
Abiotic factors control where animals live ; species ranges don't equal biome ranges
Niche - ANSWER-Entire range of resources a species needs to survive
Factors that might be important to a niche - ANSWER-Food size, temperature, mate
availability, variation in niche might explain coexistence
Niche partitioning - ANSWER-Niches are now different sizes
Niche Packing - ANSWER--Not all excess of competition
-Determined by the resource level of a habitat
Fundamental Niche - ANSWER--The entire area a species could inhabit
Realized Niche - ANSWER--The area a species actually inhabits
MacArthur's Warblers - ANSWER-Showed evidence of niche partitioning
Competition - ANSWER-When two or more species need the same resource (-/-)
Parasitism - ANSWER--Symbioses
-non-mutual symbiotic relationship between species, where one species, the
parasite, benefits at the expense of the other, the host.
Mutualism - ANSWER--Symbioses
-symbiosis that is beneficial to both organisms involved.
Commensalism - ANSWER--Symbioses
-an association between two organisms in which one benefits and the other derives
neither benefit nor harm.
Answers
Lake effect snow - ANSWER-Produced in winter when cold winds warmer lake
water. Water will stay warmer longer than air. Bring lots of snow.
-Factors that lead to local variation in climate
El nino - ANSWER--Less predictable global effects on climate
-The flow of current reverse so warm and cold water flows to South America
La Nina - ANSWER--Less predictable global effects on climate
-Cold water currents reach farther west (Reverse Nino)
Pacific decadal oscillation - ANSWER--Less predictable global effects on climate
-Shift in surface temperature of worth pacific
-Switch between cold and warm phases
-effects climate
Stochasticity - ANSWER-Process outcomes cannot always be predicted
Convergence in traits and habitats - ANSWER--powerful force
-evidence at all levels in the tree of life
-explains why our certain habitat is recognizable to us
Biomes - ANSWER--very large regions of the earth whose distribution depends on
the amount of Temperature and Rainfall
Tundra - ANSWER-Found in arctic at high elevations
-Vegetation is low in arctic tundra
-permafrost
-frozen desert
-insects are abundant
-reindeer, caribou, arctic wolves, arctic foxes, arctic hares, polar bears
Tropical Rain Forest - ANSWER--Found near the equator with abundant rainfall,
stable temperatures, and high humidity
-most diversity
-dominant trees are very tall
Desert - ANSWER--most extreme temperature fluctuations
-drought resistant cactus
-most animals are active at night when heat is no longer intense
-rodents, kangaroos, rats, snakes, lizards, insects, spiders
, Temperate Grassland - ANSWER--Covers huge areas
-Characterized by low total annual rainfall
-grazing mammals: bison, gazelle, rodents
Temperate Deciduous Forest - ANSWER--Characterized by trees that drop their
leaves for the winter
-Found in North America
-Vertical Stratification
-deer, foxes, bears
(Buffalo is one)
Conifer Forest- Taiga - ANSWER--located in northern Canada
-dominated by conifer (evergreen) forests
-dotted with lakes, ponds and bogs
-very cold winters
-largest terrestrial biome
-heavy snowfall
-large mammas; bear, moose, wolverines
Why don't biome boundaries exactly match species range boundaries? - ANSWER-
Abiotic factors control where animals live ; species ranges don't equal biome ranges
Niche - ANSWER-Entire range of resources a species needs to survive
Factors that might be important to a niche - ANSWER-Food size, temperature, mate
availability, variation in niche might explain coexistence
Niche partitioning - ANSWER-Niches are now different sizes
Niche Packing - ANSWER--Not all excess of competition
-Determined by the resource level of a habitat
Fundamental Niche - ANSWER--The entire area a species could inhabit
Realized Niche - ANSWER--The area a species actually inhabits
MacArthur's Warblers - ANSWER-Showed evidence of niche partitioning
Competition - ANSWER-When two or more species need the same resource (-/-)
Parasitism - ANSWER--Symbioses
-non-mutual symbiotic relationship between species, where one species, the
parasite, benefits at the expense of the other, the host.
Mutualism - ANSWER--Symbioses
-symbiosis that is beneficial to both organisms involved.
Commensalism - ANSWER--Symbioses
-an association between two organisms in which one benefits and the other derives
neither benefit nor harm.
