|| || || || ||
answers ||
Outline
two
negative environmental impacts of aquaculture 2b -
|| || || || || || || ||
CORRECT ANSWERS(S)✅✅Loss/degradation of natural
|| || || ||
habitats;
disease spread through farm || || ||
Describe
two
strategies for the management of sustainable capture
|| || || || || || || ||
fisheries 2c - CORRECT ANSWERS(S)✅✅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
|| || || || ||
ANSWERS(S)✅✅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 ANSWERS(S)✅✅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 ANSWERS(S)✅✅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 || || || || ||
ANSWERS(S)✅✅greater number ||
of species/habitat/ecological niches/genetic diversity
|| || || ||
more complex/diverse energy pathways/food webs
|| || || ||
Distinguish between zonation and succession 1c -
|| || || || || || ||
CORRECT ANSWERS(S)✅✅succession is the process of
|| || || || || ||
changes in community/ecosystem over time,
|| || || ||
whereas zonation is the process of changes over an
|| || || || || || || || ||
environmental
gradient
/space