LMU ENTRANCE EXAM QUESTIONS
AND ANSWERS UPDATED
(2024/2025) (VERIFIED ANSWERS)
Sympatric speciation: - ANS ✓No physical geographic barrier
Prezygotic barriers: barriers that form before you can even make a zygote.
Behavioral isolation: different bird songs not attracting certain females
Temporal isolation: breeding in different seasons or times Habitat
isolation: One prefers an aquatic environment and one prefers terrestrial
Postzygotic barriers: Offspring not able to develop Genetic incompatibility
parapatric speciation - ANS ✓speciation pattern in which populations speciate
while in contact along a common border.
Environmental gradient formed where a hybrid is not favored
Ecological Niche - ANS ✓N dimensional hypervolume which an individual can
make a positive contribution to the next generation. How a population responds
to the distribution of resources. The niche encompasses the ecological space
which a species can consume resources as well as the pattern of resource use.
The more similar the niche, the stronger the competition between species.
N Dimensional hypervolume where the dimensions are environmental
conditions and resources required for a species to live its "way of life".
(Hypervolume= multidimensional space of resources)
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LMU Entrance
, LMU
Interspecific competition - ANS ✓competition between 2 species (lions and
hyenas competing for food)
Intraspecific comp - ANS ✓competition between same species. (deer fighting
for mate)
Resilience - ANS ✓the capacity of an ecosystem to recover after a disturbance
Minimum population - ANS ✓The minimum number of individuals of a
population needed for that species to survive in the wild.
Altruism - ANS ✓actor loses, receiver gains: selfless
Mutualism - ANS ✓Both benefits. Obligate: Necessary to survive. Facultative:
Not dependent
Commensalism - ANS ✓One benefits, other is not affected
Minimum population - ANS ✓The minimum number of individuals of a
population needed for that species to survive in the wild.
Metapopulation - ANS ✓Group of one species made up of spatially separated
populations that interact on some level. Usually in fragmented habitats
Key stone species - ANS ✓species who's influence on the environment is not
proportional to its biomass
Key stone ecosystems - ANS ✓ecosystem plummets as soon as biodiversity
declines from natural levels
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LMU Entrance
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