UWL BIO105 Final Exam and All
Correct Answers 2025-2026 Update.
science - Answer process that addresses questions about cause-and-effect relationship in
nature
hypothesis - Answer a proposed explanation for an observable phenomenon
theory - Answer a theory is a major unifying idea with far reaching implications that has
been extensively tested and attempts to disprove it have failed
evolution - Answer the change in a population or a species over time
natural selection - Answer the prose that results in the survival and reproductive success of
individuals best adapted to their environment
sexual selection - Answer form of natural selection that comes about through preference by
one sex for particular characteristics in individuals of the other sex
genetic drift - Answer the change in genetic make up of a population due to a random event
migration - Answer migration of individuals from one population to another can also cause
populations to change
mechanisms that can cause evolution - Answer genetic mutations, natural selection,
nonrandom mating, genetic drift, gene flow(migration)
factors that most affect biomes - Answer temp and precip
Hadley cells - Answer large-scale convection cell in which air rises at the equator and sinks at
medium latitudes
population ecology - Answer the study of how and why the number of individuals in a
population change over time
demographic factors - Answer birth, death, immigration, emigration
, things that limit population growth - Answer food, fertility, disease, space, competition,
toxins, predation
per capita rate of increase(r) is influenced by - Answer ages of first reproduction, frequency
of reproduction, fecundity, length of reproductive life span, and survival rate of young
fecundity - Answer the average number of off spring
survivorship - Answer different species show different rates of mortality at different stages in
their lifetime
density dependence - Answer growth rate is a function of population size
density independent factors - Answer limits populations size regardless of density
ecological rule - Answer describes the relationship of something
biodiversity - Answer variety of different kinds of organisms
stability - Answer resistance or resilience
trophic structure - Answer movement of energy
parasitism - Answer benefit to one species, but harms another
mutualism - Answer benefits both species
commensalism - Answer benefits one species, but no impact on another species
ecological niche - Answer the role a species play in its community
fundamental niche - Answer all conditions under which the organism can survive
realized niche - Answer set of conditions under which it exists in nature
Correct Answers 2025-2026 Update.
science - Answer process that addresses questions about cause-and-effect relationship in
nature
hypothesis - Answer a proposed explanation for an observable phenomenon
theory - Answer a theory is a major unifying idea with far reaching implications that has
been extensively tested and attempts to disprove it have failed
evolution - Answer the change in a population or a species over time
natural selection - Answer the prose that results in the survival and reproductive success of
individuals best adapted to their environment
sexual selection - Answer form of natural selection that comes about through preference by
one sex for particular characteristics in individuals of the other sex
genetic drift - Answer the change in genetic make up of a population due to a random event
migration - Answer migration of individuals from one population to another can also cause
populations to change
mechanisms that can cause evolution - Answer genetic mutations, natural selection,
nonrandom mating, genetic drift, gene flow(migration)
factors that most affect biomes - Answer temp and precip
Hadley cells - Answer large-scale convection cell in which air rises at the equator and sinks at
medium latitudes
population ecology - Answer the study of how and why the number of individuals in a
population change over time
demographic factors - Answer birth, death, immigration, emigration
, things that limit population growth - Answer food, fertility, disease, space, competition,
toxins, predation
per capita rate of increase(r) is influenced by - Answer ages of first reproduction, frequency
of reproduction, fecundity, length of reproductive life span, and survival rate of young
fecundity - Answer the average number of off spring
survivorship - Answer different species show different rates of mortality at different stages in
their lifetime
density dependence - Answer growth rate is a function of population size
density independent factors - Answer limits populations size regardless of density
ecological rule - Answer describes the relationship of something
biodiversity - Answer variety of different kinds of organisms
stability - Answer resistance or resilience
trophic structure - Answer movement of energy
parasitism - Answer benefit to one species, but harms another
mutualism - Answer benefits both species
commensalism - Answer benefits one species, but no impact on another species
ecological niche - Answer the role a species play in its community
fundamental niche - Answer all conditions under which the organism can survive
realized niche - Answer set of conditions under which it exists in nature
