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ESS exam questions with complete solutions
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ESS exam questions with complete solutions
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ESS exam questionsOutline
two
negative environmental impacts of aquaculture 2b - correct answer ✔✔Loss/degradation of natural
habitats;
disease spread through farm
Describe
two
strategies for the management of sustainable capture fisheries 2c - correct answer ✔✔regulation of
quotas/minimum size of fish caught. restriction to fishing seasons
/ to let stocks recover.
Outline the factors that contribute to total biodiversity of an ecosystem 6a - correct answer
✔✔biodiversity includes the diversity of species, habitat and gene. species diversity involves both the
variety/number of species/richness and their
relative proportions/evenness;
habitat diversity refers to the range of different habitats in an ecosystem or
biome
Outline how energy drives the hydrological cycle 7a - correct answer ✔✔primary source of energy
driving hydrological cycle is solar energy;
solar energy causes changes of state in water.
Outline
two
reasons why the species within pioneer communities in
Figure 1
, are more
likely to be
r
-strategists than
K
-strategists 1a - correct answer ✔✔r- strategists produce greater numbers/many offspring/fast
population
growth;
r- strategists distribute themselves more widely/colonize more quickly;
r- strategists mature quickly/reproduce earlier/establish themselves fast
r- strategists better adapted to harsh/low
-nutrient conditions/less specialised niche
Outline
two
reasons why the climax community in
Figure 1
is more stable than the
intermediate community. 1b - correct answer ✔✔greater number
of species/habitat/ecological niches/genetic diversity
more complex/diverse energy pathways/food webs
Distinguish between zonation and succession 1c - correct answer ✔✔succession is the process of
changes in community/ecosystem over time,
whereas zonation is the process of changes over an environmental
gradient
/space
Outline
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