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WorksheetsIB ESS Topic 3 Biodiversity and conservation
Total questions: 50
Worksheet time: 32mins
What is an invasive species?
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
What is the variety of genes present?
bidiversity
species diversity
extinction
genetic diversity
_______ happens when fertilizers, animal waste, sewage or other substances rich in nitrogen and phosphorus are lost into waterways causing excessive algae growth.
Eutrophication
Introduced species
Biological Augmentation
Nonrenewable Resource
Species that are only found in a specific geographic area are _______.
Introduced species
Local species
Endemic
Biodiversity hot spot
the breaking of habitats into smaller pieces is called...
habitat division
habitat pollution
habitat corruption
habitat fragmentation
The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) and the Convention on Biological Diversity are examples of
organizations that promote poaching.
international organisation on climate change.
international treaties to protect biodiversity.
laws to increase the number of species
Extinction rates are significantly __________ in recent decades than before.
Lower
Higher
Biologists put extra effort into protecting these because they contain ~60% of the world's species
National parks
Biodiversity Hotspots
Tropical rainforests
Conservation stations
Programs that breed animals in captivity then release them to the wild are called...
IUCN red list
Captive conservation
Captive Breeding Programs
Catch and Release Programs
The species that plays a critical role in maintaining the ecosystem structure is?
Flagship species
Umbrella species
Keystone Species
Leading species
An event in which a large percentage of all living species become extinct in a relatively short period of time.
Habitat fragmentation
Mass extinction
Overexploitation
Background extinction
Why are advantageous traits more likely to be passed onto offspring?
Because they are more likely to survive and reproduce.
Because they come from dominant alleles.
Because they come from recessive alleles.
Because the trait is an acquired phenotype.
Which term refers to the process by which individuals that are better suited to the environment survive and reproduce therefore passing down their genes to their offspring?
Evolution
Variation
Adaptation
Natural Selection
The natural differences between individuals of a species is called ___________.
adaptations
natural selection
variation
fitness
The 3 different types of biodiversity (in IB ESS) are;
Genes, Species, Habitats
Genes, Species, Ecosystems
Species, Habitats, Communities
Biosphere, Genes, Habitats
The introduction of Alien species affects biodiversity negatively if the alien species;
has a faster growth rate than native species
outcompetes the native species for resources
carries a new pathogen into the native species habitat
all of the above.
What is the name of a common biodiversity index?
Living
Carr
Elton
Simpson
A place that stores seeds to preserve their genes for the future is called...
Botanical preserve
Plant depository
Seed bank
Herbarium
What is THE most major cause of extinction today?
habitat destruction by humans
poaching
disease
hunting
What is species diversity?
the variety of different organisms in an environment
the number of individuals in a population
the number of habitats on a continent
how much food is available in a habitat
Which of these describes genetic diversity?
number of different species in an ecosystem
the number of species on the planet
variety in genotypes across a population
number of populations in an ecosystem
The theory of evolution says that living things ___________.
grow and develop
change over time
stay the same throughout history
change very quickly
Why is biodiversity so important?
Because all species depend on each other to survive, so if one becomes extinct another species that relies on it could go extinct as well
Because it’s better to have only one variation of each species.
Because it better to only have a few species on Earth.
Honestly, I have no idea what biodiversity is!
Which biome is more biodiverse?
Desert
Taiga
Tundra
Rainforest
Geographic isolation for a long period of time can lead to the creation of a new _______.
fossil
environment
species
An adaptation is
how animals change over time.
a characteristic that helps and organism survive in its environment.
a theory of how organisms change.
the genes in an organism that determine how an organism is going to look.
Increases the stability of an ecosystem and contributes to the health of the biosphere.
Biodiversity
Genetic diversity
Species diversity
Ecosystem diversity
As biodiversity decreases, the sustainability of an ecosystem...
Increases
Decreases
Stays the same
All of these are correct
Ecosystem biodiversity is best described as . . .
The variety of different ecosystems there are in the biosphere
The different type of biomes there are
The different types of abiotic and biotic factors as well as climate within environments
All of these are correct
Having more diversity allows organisms and environments to...
Respond the changes better
Evolve and Adapt at a slower rate
Become extinct
All of these are correct
What actions decrease biodiversity?
Pollution
Overpopulation
Habitat Destruction / Loss
Monocrop Farming / Mining / Overfishing / Over hunting
All of these are correct
What happens when species become extinct?
a few are still alive
the adults are dead but some eggs still have not hatched
the whole species does not exist
the species do not exist in some parts of the world
True or False: No one knows the exact number of species that live on Earth.
True
False
An Economic Value of Biodiversity is the use of tourism to run wildlife tours in rain forests, savannas, mountain ranges, and other locations called
Savanna Tours
Madagascar Trips
Keystone Tourism
Ecotourism
A charismatic, often cute and cuddly flagship species may be used to promote human connection, but what are the disadvantages of such species?
They can be made into cuddly toys for marketing
Humans may be in conflict with them eg Tigers eat people
They may become extinct and so the conservation work would stop
They become popular within the public
They take priority even if they are not important to the ecosystem
An event in which one species per 1 million species become extinct every year.
Habitat fragmentation
Mass extinction
Overexploitation
Background extinction
Which of these factors increase speciation because of plate tectonics?
Change in climate as the continent moves to different longitudes
New island formation which is an isolated land mass
Fold mountains forming which divide populations from each other
Increased natural selection from the release of volcanic gases
Land bridges allowing populations to move between land masses
Which of these are NOT an INDIRECT reason to conserve biodiversity?
Species which we eat may be wiped out by disease so we may need older varieties' genes in the future
Species have the fundamental biorights to exist
The species or ecosystem provides services we need
Species may have genes we can use in genetic engineering
