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WorksheetsBiodiversity
Total questions: 15
Worksheet time: 15mins
How many species are on earth?
1-2 billion
5-10 million
100-200 thousand
50-100 million
An animal that is on the verge of becoming extinct is an?
endangered species
threatened species
exotic species
keystone species
Exotic species is
a species that is endangered
a species that is not native to a particular region
a species that is threatened
a species that is rare and beautiful
A mixture of two different types of crops is known as...
keystone species
ecotourism
hybrids
endemic species
Which of the following would be MOST effective in slowing the loss of biodiversity?
freezing fertilized eggs of endangered animals in case the species become extinct in the wild
setting aside small plots of land in a variety of ecosystems, such as forests, grasslands, and marshes
creating large parks/preserves in biodiversity hotspots
requiring every country to maintain a seed bank
The level of biodiversity that involves a variety of habitats and communities is
ecosystem diversity
genetic diversity
populations diversity
species diversity
Reasons for preserving biodiversity include all of the following except?
isolating unique genetic material so it can be incorporated into existing crops
increasing chances of discovering organisms with medicinal value
preventing natural evolution
finding new plants that can supplement the worlds food supply
An endangered species is
a species in danger of extinction
a species growing on public land
an organism brought to a place where it has not lived before
a species that has disappeared entirely
The International Union for Conservation of Nature and Natural Resources (IUCN)
is known for trying to save endangered species through dramatic, attention-grabbing protests
is an organization of multinational corporations united to fight conservation efforts.
is collaboration of about 200 governmental agencies and 700 private conservation groups from around the world
was disbanded after Earth Summit of 1992
Which of the following statements about the California condor is correct?
the California condor has made a dramatic comeback and has been removed from the endangered species list
The California condor is the subject of a captive-breeding program
Several hundred breeding pairs of California condors have been released into the wild
All of the above
According to biologists, what percentage of species have become or are expected to become extinct between 1900 and 2100?
1 percent
10 percent
25 percent
60 percent
Earth's various organisms appear to be
mostly small vertebrates
largely known to scientist
concentrated in central biomes
evolving at an unprecedented rate
Which of the following is a major threat to biodiversity?
Habitat destruction
Increased genetic diversity
Natural selection
Speciation
What is the primary purpose of a biodiversity hotspot?
To provide a habitat for invasive species
To focus conservation efforts on areas with high species richness
To promote urban development
To increase agricultural output
Which of the following best describes genetic diversity?
The variety of species within a habitat
The variety of ecosystems within a region
The variety of genes within a species
The variety of habitats within an ecosystem
