Biology Questions and Answers
- What is biotic potential?
Biotic potential is the capability of
growth ohypothetical optimum conf a given population uditions, i.e., nder (^) in
an environment without limiting factors
to such growth. Uthe population tends to gnder such conrow ditions
indefinitely.
- What is the typical shape of
a population growth curve?
How can the biotic potential
be represented in the same
way graphically?
A typical p(number of individuals x time, linopulation growth curveear (^)
scale) hshort and slow initialas a sigmoidal s growth hape. There is afollowed by (^)
a fast and longer growth and again a
decrease in growth preceding thestabilization or equilibrium stage.
The population biotic potential curve however is notgrowth according to th e
sigmoidal, it is only crescent-shaped
and points uscale (there is neither a decreasingp to the infinite value of the
stage nor equilibrium).
- What is environmental
resistance?
Environmental resistance is the action of
limiting adisallow the growth of a population biotic and biotic factors thatas it (^)
would grow accordinpotential. Actually each eg to itscosystem biotic (^) is
able to sustain a limited number of
individuals of a given species.
The environmental resistance is an
important conceecology. pt of population
- What are the main limiting
factors for the growth of a
population?
The factorspopulation can b that limit the growth oe divided into bioticf a
factors and abiotic factors. The main
abiotic limiting fof water and light, availabilityactors are: availability of shelter. (^)
The main limiting bpopulation density aniotic factorsd inharmoni are:ous (^)
(negative) ecological interactions
(competition, pammensalism).redatism, parasitism,
- How do the availability of
water and light and the
climate affect the growth of a
population?
The availabilitythe climate are of water aabiotic factorsnd light an that limitd (^)
the growth of a population. Since the
producers arsynthesis of organic material transfe responsible for the (^) erred
along the food chains of an ecosystem,
water and light afood and a population canffect the availabilitynot grow of
beyond the number of individuals the
environment is able to feed. Forexample, in the desert, the biomass (^) is
relatively small and populations that live
in this ecosystem are to the same species in environmsmaller (comparents ed
with large available biomass). The
climate, incluaffects the population gding the temperature,rowth because (^)
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