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WorksheetsBiodiversity Issues
Total questions: 30
Worksheet time: 7hrs 20mins
The global authority that document the conservation status of the species is
IUCN
WWF
National Geographic
United Nations Environment
An endangered species is
any species that is in danger of extinction throughout all or a significant portion of its range
any species that is in danger of extinction throughout all of its range
any species that is likely to become endangered within a significant portion of its range
any species that is likely to become endangered within the foreseeable future
A threatened species is
any species that is in danger of extinction throughout all or a significant portion of its range
any species that is in danger of extinction throughout all of its range
any species that is likely to become endangered within a significant portion of its range
any species that is likely to become endangered within the foreseeable future
A species is defined as threatened / endangered when it suffers from
habitat destruction
overharvesting
climate change
all of the above
Which of following is not a level of biodiversity?
Genetic
Species
Population
Ecosystem
Genetic diversity is
the variety of genes within a species
the variety of allele within an individual
the variety of genome within a population
the variety of genes within a population
Species diversity is
the number of individual within a species
the number of animals within a habitat or a region
the number of regions where a species present
the number of species within a habitat or a region
Ecosystem diversity is
the number of habitats within an ecosystem
the variety of ecosystems in a given place
the variety of biomes in the world
the variety of ecosystems within a habitat
When a forest is cleared, which biodiversity level may be affected?
Genetic diversity
Species diversity
Ecosystem diversity
All of the above
Which of the following is not a megadiverse country?
Australia
Malaysia
Canada
China
Which of the following does not destroy habitats?
building homes
nature reserves
plantation
tourism
Natural process that may cause habitat destruction is
Fire
Volcano
Tsunami
All of the above
Which of the following is not a type of habitat destruction?
Habitat fragmentation
Habitat degradation
Habitat loss
Habitat expansion
Invasive species is defined as
A native (naturally found) species which are added to an area.
A non-native (not naturally found) species added to an area.
A keystone species in an environment
None of the above
The direct threats of invasive species are listed below except
preying on native species
changing the niche of native species
outcompeting native species
spreading disease to native species
Why do the populations of invasive species grow so quickly?
Invasive species are native to an area.
Invasive species are prey to many animals.
Invasive species have no predators.
Invasive species keep the ecosystems in equilibrium.
What is the main cause for the spread of invasive species?
Air pollution
Global warming
Wind dispersal
Human means
How overharvesting in fishery industry can occur?
Lack of government regulation
Advance technology that increase harvesting efficiency
Lack of awareness on the effects of overharvesting on biodiversity
All of the above
Climate change affects species through
Loss or degradation of important habitats and microhabitats
Changing of environmental thresholds (e.g. temperature, water availability/quality) beyond those that a species can tolerate
The disruption of environmental cues (e.g. for breeding or migration)
All of the above
Below are the expected events when climate change occurs except
increased in average temperature
reduction in sea level
altered weather patterns
continued loss of polar ice and montane glaciers
The 40% drops in the number of polar bear in the Southern Beaufort Sea is caused by
habitat destruction
overharvesting
invasive species
climate change
The major reason for the decline of Malayan Tiger in Malaysia is
habitat destruction
invasive species
overexploitation
climate change
A classic example of overharvesting is evident in the decline of
Horned frog
Minke whale
Jungle fowl
Pygmy hippos
Water Hyacinth is a plant that can cover lakes and ponds entirely, affect water flow, and block sunlight from reaching native aquatic plants which often die. It is an example of
native species
invasive species
keystone species
endemic species
Plant Quarantine Regulation 1981, Fisheries Act 1984, and Animal Ordinance 1953 are examples of Malaysian regulations that control
habitat destruction
invasive species
overexploitation
climate change
Malaysia ratified Convention on Biological Diversity in June of 1994. The aim of this convention is/are to
conserve biological diversity
use components of biological diversity sustainably
share the benefits arising out of the utilization of genetic resources fairly and equally
All of the above
Kyoto Protocol, which is ratified by Malaysia in 2002, is aimed to combat
habitat destruction
invasive species
overexploitation
climate change
By reducing wildlife trade in Malaysia, we can help to overcome
habitat destruction
invasive species
overharvesting
climate change
Which of the following does not help to solve habitat destruction?
Introduce foreign species in the destructed habitat
Plant trees
Gazette nature reserves
Increase awareness of habitat preservation
Solutions that can be done by individuals to mitigate climate change are listed below except
use less fossil fuels
control number of children
generate energy from renewable resources
reduce use of electricity
