Ecol111 Final Exam 2025/2026 Exam
Questions and Detailed Answers | Get it
100% Correct Answers
Ecology - 🧠 ANSWER ✔✔the scientific study of the distribution and
abundance of organisms and of the interactions that determine distribution
and abundance
Intertidal - 🧠 ANSWER ✔✔occasionally under water
subtidal - 🧠 ANSWER ✔✔always under water
supratidal - 🧠 ANSWER ✔✔only under water during ectreme flood or spring
tide
fitness - 🧠 ANSWER ✔✔a quantitative representation of individual
reproductive success -- how good a particular geno/phenotype is at leaving
offspring
allee effect - 🧠 ANSWER ✔✔a correlation between population size or
denstiy and the mean individual fitness -- so all organisms have a minimum
population density required to breed
1
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,fecundity - 🧠 ANSWER ✔✔an individual's reproductive capacity
gradient - 🧠 ANSWER ✔✔a change in a parameter or a suite of parameters
through space or time (temp, irradiance, water depth)
torpor vs hibernation - 🧠 ANSWER ✔✔reduced metabolic activities daily or
for long periods
niche - 🧠 ANSWER ✔✔all parts of a variable's range where the organism's
performance is good enough that it survives
estuary - 🧠 ANSWER ✔✔junction of a river with the ocean
hydroperiod - 🧠 ANSWER ✔✔number of days per year that an area of land
is wet or the length of time that there is standing water at a location
MAP - 🧠 ANSWER ✔✔Mean Annual Precipitation
biomes - 🧠 ANSWER ✔✔structurally and functionally similar vegetation
formations that are defined without reference to plant species
convergent evolution - 🧠 ANSWER ✔✔the process whereby organisms that
are not closely related evolve similar triats as a result of habing to adapt to
similar environments or ecological niches
2
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,apline zone - 🧠 ANSWER ✔✔the zone between the treeline and the
permanent snowline (0km at poles, 4km at equator)
endemic - 🧠 ANSWER ✔✔native and restricted to a certain place
open population - 🧠 ANSWER ✔✔immigration from unknown source,
population that is able to gain and lose outside members differentiate
populations over time, not geographically isolated
closed population - 🧠 ANSWER ✔✔no migratory flow in or out, so that
changes in the population occur through births and deaths only
migration movement (sources, sinks) - 🧠 ANSWER ✔✔source -- lots of
movement out of area
sink -- lots of movement to an area
dispersal among patches assures long term viability
interspecific competition - 🧠 ANSWER ✔✔process by which individuals of
one species suffer reduction in fecundity, suvivorship, or growth as a result
of the presence or activities of a second species (due to resources being
finite)
2 types -- exploitation, interference
3
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, exploitation competition - 🧠 ANSWER ✔✔indirect competition through
shared resources
interference competition - 🧠 ANSWER ✔✔direct competition involving one
species actively preventing access to resources or inhibiting growth or
survival of another species
meta-population - 🧠 ANSWER ✔✔the overall popualtion divided into
subpopulations by the patchiness of the environment
ecolgical communities - 🧠 ANSWER ✔✔set of two or more populations of
different species occupying the same area (distribution, patchiness,
dispersal, and interactions affects the make-up of communities comapred
to other communities)
food web - 🧠 ANSWER ✔✔consists of all organisms within a community
and the feeding connections among them
keystone species - 🧠 ANSWER ✔✔highly connected species with effects
on the community that are disproportionately large relative to their
abundance
4
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
Questions and Detailed Answers | Get it
100% Correct Answers
Ecology - 🧠 ANSWER ✔✔the scientific study of the distribution and
abundance of organisms and of the interactions that determine distribution
and abundance
Intertidal - 🧠 ANSWER ✔✔occasionally under water
subtidal - 🧠 ANSWER ✔✔always under water
supratidal - 🧠 ANSWER ✔✔only under water during ectreme flood or spring
tide
fitness - 🧠 ANSWER ✔✔a quantitative representation of individual
reproductive success -- how good a particular geno/phenotype is at leaving
offspring
allee effect - 🧠 ANSWER ✔✔a correlation between population size or
denstiy and the mean individual fitness -- so all organisms have a minimum
population density required to breed
1
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,fecundity - 🧠 ANSWER ✔✔an individual's reproductive capacity
gradient - 🧠 ANSWER ✔✔a change in a parameter or a suite of parameters
through space or time (temp, irradiance, water depth)
torpor vs hibernation - 🧠 ANSWER ✔✔reduced metabolic activities daily or
for long periods
niche - 🧠 ANSWER ✔✔all parts of a variable's range where the organism's
performance is good enough that it survives
estuary - 🧠 ANSWER ✔✔junction of a river with the ocean
hydroperiod - 🧠 ANSWER ✔✔number of days per year that an area of land
is wet or the length of time that there is standing water at a location
MAP - 🧠 ANSWER ✔✔Mean Annual Precipitation
biomes - 🧠 ANSWER ✔✔structurally and functionally similar vegetation
formations that are defined without reference to plant species
convergent evolution - 🧠 ANSWER ✔✔the process whereby organisms that
are not closely related evolve similar triats as a result of habing to adapt to
similar environments or ecological niches
2
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
,apline zone - 🧠 ANSWER ✔✔the zone between the treeline and the
permanent snowline (0km at poles, 4km at equator)
endemic - 🧠 ANSWER ✔✔native and restricted to a certain place
open population - 🧠 ANSWER ✔✔immigration from unknown source,
population that is able to gain and lose outside members differentiate
populations over time, not geographically isolated
closed population - 🧠 ANSWER ✔✔no migratory flow in or out, so that
changes in the population occur through births and deaths only
migration movement (sources, sinks) - 🧠 ANSWER ✔✔source -- lots of
movement out of area
sink -- lots of movement to an area
dispersal among patches assures long term viability
interspecific competition - 🧠 ANSWER ✔✔process by which individuals of
one species suffer reduction in fecundity, suvivorship, or growth as a result
of the presence or activities of a second species (due to resources being
finite)
2 types -- exploitation, interference
3
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
, exploitation competition - 🧠 ANSWER ✔✔indirect competition through
shared resources
interference competition - 🧠 ANSWER ✔✔direct competition involving one
species actively preventing access to resources or inhibiting growth or
survival of another species
meta-population - 🧠 ANSWER ✔✔the overall popualtion divided into
subpopulations by the patchiness of the environment
ecolgical communities - 🧠 ANSWER ✔✔set of two or more populations of
different species occupying the same area (distribution, patchiness,
dispersal, and interactions affects the make-up of communities comapred
to other communities)
food web - 🧠 ANSWER ✔✔consists of all organisms within a community
and the feeding connections among them
keystone species - 🧠 ANSWER ✔✔highly connected species with effects
on the community that are disproportionately large relative to their
abundance
4
COPYRIGHT@SARAHROSAPERAL 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE.
PRIVACY STATEMENT. ALL RIGHTS RESERVED
