1.5 Ecosystem Study FMQuiz Homework Solution
Q. In ecology the term flora refers to …
A. Plants
Q. State one role of microorganisms in waste
management.
A. To consume waste
Q. How were you able to identify the different
plants in the ecosystem that you investigated?
A. Key(s) or illustrations or guide book
Q. Explain the term conservation.
A. Management of ecosystems
Q. Name pieces of apparatus used to collect
animals from an ecosystem.
A. Pooter; Beating tray; Pitfall trap; Net; etc.
Q. Name two groups of micro-organisms in the soil
which are responsible for decomposition.
A. Bacteria and Fungi
Q. In ecology the term fauna refers to …
A. Animals
Q. What is meant by nitrogen fixation?
A. The conversion of nitrogen into nitrates
Q. In relation to a study of an ecosystem explain
what a qualitative survey is.
A. What is present
Q. Farmers add nitrate fertilizers to the soil but not
if heavy rain is forecast. Why not?
A. Eutrophication
Q. Give two possible sources of error that may
have arisen in the course of your survey of plant
species.
A. Misidentification; Non-random quadrat
distribution; Not enough times; Miscount
Q. Name an important group of biomolecules that
plants make from nitrates.
A. Proteins
Q. Explain the term ectoparasite.
A. Organism living on host causing damage
Q. In relation to a study of an ecosystem explain
what a quantitative survey is.
A. How many present
Q. Organisms that return nutrients to the
environment by decay are called …
A. Decomposers
Q. What is a quadrat used for in your ecology
studies?
A. Quantitative surveys e.g. distribution, frequency,
cover
Q. Name one animal from the ecosystem you have
studied and describe one way in which it is adapted
to its habitat.
A. e.g. Grasshopper / Green colour
Q. What is meant by pollution?
A. Any harmful addition to the ecosystem
Q. What is meant by nitrification?
A. The process of converting ammonia into nitrites
and/or nitrites to nitrates
Q. What is the function of the nitrogen cycle?
A. To make nitrogen available for use by organisms
Q. Name a group of organisms involved in nitrogen
fixation.
A. Bacteria; Monera; Lichens; Clover; Legumes
Q. List two ways of minimising waste.
A. Reduce; Reuse; Recycle
Q. State problems associated with waste disposal
in Ireland.
A. Finding land for landfill sites; Litter; Pollution
Q. Name one human activity that causes pollution.
A. Fertiliser run-off
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