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Biodiversity And Conservation
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Q.1
Where are many critical biodiversity hotspots located?
islands, tropical rain forests, and coastal areas
cities and developed areas of the world
Q.2
What is THE most major cause of extinction today?
habitat destruction by humans
poaching
disease
hunting
Q.3
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
Q.4
How many species are estimated to be living on Earth?
between 10,000 and 100,000
between 1 and 2 million
between 500,000 and 1 million
between 10 and 50 million
Q.5
The term diversity means
similarity
variety
Eastern
None of these
Q.6
Why is biodiversity important to ecosystems?
It helps populations adapt to ecological changes.
It increases at each level of the food chain.
Q.7
What level of biodiversity is most commonly equated with the overall concept of biodiversity?
genetic
ecosystem
species
Q.8
The variety of life in the world or in a particular habitat or ecosystem
biodiversity
demography
carrying capacity
poaching
Q.9
How can humans best help an endangered species avoid extinction?
they can feed the animals
they can put the animals in a zoo
they can protect the animal’s habitat
they can take the animal to new habitats
Q.10
In what part of the world are the greatest number of extinctions occurring?
in deserts
in the Arctic
in tropical rain forests
Q.11
Which of the following would be most effective in slowing the loss of biodiversity?
creating large parks/preserves in biodiversity hotspots
requiring every country to maintain a seed bank
Q.12
What are the five major causes of biodiversity loss?
deforestation, climate change, farming, invasive species, pollution
ocean acidification, invasive species, species extinction, over harvesting, climate change
habitat alteration, invasive species, pollution, over harvesting, climate change
climate change, urban sprawl, invasive species, over population, pollution
Q.13
The easiest component of biodiversity to measure is
ecosystem diversity
species diversity
genetic diversity
ecosystem health
Q.14
Which product is often derived from the natural environment?
cooking oiol
medicines
fuel
all of the above
Q.15
High levels of biodiversity tend to
have little to no effect on ecosystems
decrease an ecosystem's resistance
make an ecosystem less resilient
increase the stability of an ecosystem
Q.16
Which type of organism dwarfs all others in terms of species diversity?
plants
mammals
insects
protists
Q.17
The latitudinal gradient is a natural pattern in which species diversity generally
increases toward the equator
decreases toward the prime meridan
decreases in warmer climates
increases toward the poles
Q.18
Which of the following is an example of a method for managing whole ecosystems and habitats?
captive breeding
cloning
species survival plans
mapping biodiversity hotspots
Q.19
Which is the most direct way in which biodiversity can provide a source of income?
medicines
ecotourism
research
agriculture
Q.20
Which of the following are examples of nonrenewable resources...
Fossil fuels (oil, natural gas)
Minerals (radioactive material, etc)
Whole Forests
All of above
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