Page 71 - SUBSEC October 2017_Neat
P. 71
UNIT 2
MODULE 1: BIOENERGETICS AND CONSERVATION (cont’d)
SPECIFIC OBJECTIVES EXPLANATORY NOTES SUGGESTED PRACTICAL
ACTIVITIES
Energy Flow and Nutrient Cycling (cont’d)
Students should be able to:
3.3. describe how nitrogen is The role of microorganisms.
cycled within an ecosystem;
and,
3.4. explain how energy flow and Distinction between energy
nutrient cycling are flow and nutrient cycling
important for ecosystems to within an ecosystem.
remain self-sustaining units.
4. Ecological Systems, Biodiversity and Conservations
Students should be able to:
4.1. discuss how ecosystems Use of a named example. The use of models to study
function as dynamic Include biotic and abiotic ecosystems, for example,
systems; factors and the interactions mesocosm.
between them. Mention the
terms competition,
predation, mutualism,
commensalism, and
parasitism.
4.2. explain the concept of Discussion of genetic
biodiversity; diversity, species diversity
and ecosystem diversity.
4.3. discuss the importance of Intrinsic, direct and indirect
the maintenance of values, including medicine,
biodiversity; natural products, tourism.
4.4. discuss how species diversity Discussion of factors
is related to the stability of important to maintaining
an ecosystem; and, species diversity. Use
regional examples.
4.5. explain how in situ and ex Protected areas and or
situ conservation methods reserves, seed banks, botanic
are used to maintain gardens, zoos, sperm banks,
biodiversity. embryo banks.
CXC A10/U2/17
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