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WorksheetsBiodiversity Topic 1
Total questions: 20
Worksheet time: 12mins
Why is biodiversity important to ecosystems?
It helps populations adapt to ecological changes.
It increases at each level of the food chain.
In what part of the world are the greatest number of extinctions occurring?
in deserts
in the Arctic
in tropical rain forests
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
Biodiversity, aka biological diversity, usually refers to
the number of people on Earth
the variety of species on Earth
the number of animal species in a specific area
the number of plant species in a specific area
What is an ecosystem?
A type of musical instrument
A community of living organisms in conjunction with the nonliving components of their environment.
A mathematical equation
A type of computer software
What is the general term for the relationship between two organisms?
Symbiosis
Mutualism
Commensalism
Parasitism
What is the term for a place an organism lives?
Species
Community
Niche
Habitat
What characteristic of specialist species makes them more likely to become extinct than generalist species?
They have a narrow range of tolerance and specific habitat and food needs
They can adapt to a wide range of habitats
They are highly competitive and invasive
They are easily disturbed by invasive species
What is a generalist species?
A species that can adapt to a wide range of habitats
A species that has a narrow range of tolerance and specific habitat and food needs
A species that is highly competitive and invasive
A species that is easily disturbed by invasive species
What is a specialist species?
A species that can adapt to a wide range of habitats
A species that has a narrow range of tolerance and specific habitat and food needs
A species that is highly competitive and invasive
A species that is easily disturbed by invasive species
Physiological
Structural
Behavioral
Physiological
Structural
Behavioral
Physiological
Structural
Behavioral
What type of adaptation affects how an organism acts?
Behavioral
Physiological
Structural
What is an adaptation?
A trait that increases the fitness of an organism.
A trait that an organism acquires without genetic influence.
A choice made by humans about what organisms breed for advantageous traits.
What is the difference between endangered species and extinct species?
Endangered species are extinct, while extinct species are still present in small numbers.
Endangered species are those at risk of extinction, while extinct species are those that no longer exist.
Endangered species are those that have adapted to their environment, while extinct species are those that have failed to adapt.
There is no difference between endangered and extinct species.
What is the impact of climate change on biodiversity?
Climate change has no impact on biodiversity.
Climate change can lead to shifts in species distribution, changes in population size, and even species extinction.
Climate change increases biodiversity by creating new habitats.
Climate change only affects biodiversity in marine ecosystems.
Explain the concept of speciation.
Speciation is the process by which new species arise from existing species.
Speciation is the process by which species reproduce asexually.
Speciation is the process by which species evolve into different genera.
Speciation is the process by which species become extinct.
How does natural selection contribute to evolution?
Natural selection is a random process and does not contribute to evolution.
Natural selection favors individuals with advantageous traits, leading to evolutionary change.
Natural selection only affects physical traits and not genetic traits.
Natural selection leads to the extinction of species rather than evolution.
What is an adaptation?
An adaptation is a process by which an organism becomes better suited to its environment but is unable to reproduce.
An adaptation is a process by which an organism changes its environment to suit its needs.
An adaptation is a process by which an organism becomes better suited to its environment in order to survive and reproduce.
An adaptation is a process by which an organism becomes worse suited to its environment and is unable to survive and reproduce.
