Bio 200 Exam 1 CSUCI F2017
Questions with Correct Answers
Life History - ANSWER-ability to reproduce, what is historically used to promote
success for that population. Ex: bowhead whale, reproduces one time every few
years maybe twice in life.
Adaptations - ANSWER-help you succeed, fitness and evolution, natural selection,
Darwinian fitness.
Ex: Salmon Life History - ANSWER-live in ocean, migrate, swim into estuary, swim
up into freshwater and reproduce in the same area they first hatched, after salmon
spawn, they die. Worked well until rivers were dammed, blocked passage for
reproduction.
Iteroparity - ANSWER-when you can reproduce multiple times in your life
Semelparity - ANSWER-to breed once and die
r - ANSWER-lots of babies at once, not a lot invested into offspring, low quality
k - ANSWER-fewer offspring at once, more invested into offspring, higher survival
rate.
Ex: k vs r selections - ANSWER-k=mice, r=grasshopper or r=mice, k=humans
carrying capacity - ANSWER-depends on resources, for a coyote on campus, only
one, they need lots of space.
niche - ANSWER-space, within a community, every population/organism has a role
or job, has to do with food, environment, community, habitat, sleeping during
day/night, no two niches will ever be the same.
intERspecific - ANSWER-when two species interact, compete
intRAspecific - ANSWER-competition within a population of one specie
Gause, scientist - ANSWER-Paramecium, single celled pond creatures. He studied
three different species, he then grew two species in the same space and studied the
completion between the two. Certain species cannot exist in the same environment
with the exact same food source.
Ex: Barnacles - ANSWER-They have different niches, similar species all live on the
same rock but at different distances from the water, competition for space. Some can
, be completely exposed to water for long periods of time, some need to be higher up
from the waves.
The scope of ecological research - ANSWER-global ecology
landscape ecology
ecosystem ecology
community ecology
population ecology
organismal ecology
Biomes - ANSWER-major life zones characterized by vegetation type
aquatic
dessert
tundra
grassland
forests
limiting competition - ANSWER-no two species have the same niche
resource partitioning - ANSWER-shore birds may all live in the same space but have
different abilities to get food. Ex: different species of warbler birds all live in the same
type of tree in a forest, but live at different heights of a tree, "partitioned"
character displacement - ANSWER-Galapagos finches, different beak sizes. Frogs,
two species may overlap in the same habitat, mating calls change so that females
won't get confused.
predation - ANSWER-trying to escape predation long enough to have fitness.
organisms eating other organisms
plant defenses - ANSWER-when animals and hide or run away. Cacti, sharp thorns,
sticky hairs on leafs keep aphids off, walnut inside a shell.
secondary compounds - ANSWER-defense mechanism, chemicals in plants that are
poisoness.
Taxol - ANSWER-derived from Pacific Yew tree, can cure ovarian cancer.
Aposematic (warning coloration) - ANSWER-organisms with bright spots or
distinctions that let predators know to stay away because they are poiseness.
blister beetle: bright yellow spots, can spray a chemical that causes blisters.
skunk: black with white stripe, sprays
Crypsis "to hide" - ANSWER-organisms that utilize ways to hide and blend in.
countershading - ANSWER-belly is light, back is dark, sharks.
Disruptive coloration - ANSWER-zebras, a bunch together in a herd, confuses
predator, difficult to pick one single zebra out.
Questions with Correct Answers
Life History - ANSWER-ability to reproduce, what is historically used to promote
success for that population. Ex: bowhead whale, reproduces one time every few
years maybe twice in life.
Adaptations - ANSWER-help you succeed, fitness and evolution, natural selection,
Darwinian fitness.
Ex: Salmon Life History - ANSWER-live in ocean, migrate, swim into estuary, swim
up into freshwater and reproduce in the same area they first hatched, after salmon
spawn, they die. Worked well until rivers were dammed, blocked passage for
reproduction.
Iteroparity - ANSWER-when you can reproduce multiple times in your life
Semelparity - ANSWER-to breed once and die
r - ANSWER-lots of babies at once, not a lot invested into offspring, low quality
k - ANSWER-fewer offspring at once, more invested into offspring, higher survival
rate.
Ex: k vs r selections - ANSWER-k=mice, r=grasshopper or r=mice, k=humans
carrying capacity - ANSWER-depends on resources, for a coyote on campus, only
one, they need lots of space.
niche - ANSWER-space, within a community, every population/organism has a role
or job, has to do with food, environment, community, habitat, sleeping during
day/night, no two niches will ever be the same.
intERspecific - ANSWER-when two species interact, compete
intRAspecific - ANSWER-competition within a population of one specie
Gause, scientist - ANSWER-Paramecium, single celled pond creatures. He studied
three different species, he then grew two species in the same space and studied the
completion between the two. Certain species cannot exist in the same environment
with the exact same food source.
Ex: Barnacles - ANSWER-They have different niches, similar species all live on the
same rock but at different distances from the water, competition for space. Some can
, be completely exposed to water for long periods of time, some need to be higher up
from the waves.
The scope of ecological research - ANSWER-global ecology
landscape ecology
ecosystem ecology
community ecology
population ecology
organismal ecology
Biomes - ANSWER-major life zones characterized by vegetation type
aquatic
dessert
tundra
grassland
forests
limiting competition - ANSWER-no two species have the same niche
resource partitioning - ANSWER-shore birds may all live in the same space but have
different abilities to get food. Ex: different species of warbler birds all live in the same
type of tree in a forest, but live at different heights of a tree, "partitioned"
character displacement - ANSWER-Galapagos finches, different beak sizes. Frogs,
two species may overlap in the same habitat, mating calls change so that females
won't get confused.
predation - ANSWER-trying to escape predation long enough to have fitness.
organisms eating other organisms
plant defenses - ANSWER-when animals and hide or run away. Cacti, sharp thorns,
sticky hairs on leafs keep aphids off, walnut inside a shell.
secondary compounds - ANSWER-defense mechanism, chemicals in plants that are
poisoness.
Taxol - ANSWER-derived from Pacific Yew tree, can cure ovarian cancer.
Aposematic (warning coloration) - ANSWER-organisms with bright spots or
distinctions that let predators know to stay away because they are poiseness.
blister beetle: bright yellow spots, can spray a chemical that causes blisters.
skunk: black with white stripe, sprays
Crypsis "to hide" - ANSWER-organisms that utilize ways to hide and blend in.
countershading - ANSWER-belly is light, back is dark, sharks.
Disruptive coloration - ANSWER-zebras, a bunch together in a herd, confuses
predator, difficult to pick one single zebra out.
