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WorksheetsBiodiversity Study Quiz
Total questions: 17
Worksheet time: 9mins
True or false: An ecosystem with high genetic diversity is healthier than an ecosystem with low genetic diversity.
True
False
What is an example of a human disturbance?
Deforestation
Drought
Tsunami
Changing Seasons
Define ecosystem diversity
variety of ecosystems in a given area
variation of genes within a species or population in a given area
variety of life in Earth's land, freshwater, and marine ecosystems
changes to an ecosystem that affect how the parts of it interact
Define genetic diversity
variation of genes within a species or population in a given area
variety of ecosystems in a given area
system made up of all the living and nonliving things in a given area
disturbance in the environment conditions that cause genetic changes to occur in organisms
How do biodiversity and stability work together?
The lower the biodiversity the greater the stability of an ecosystem.
The higher the biodiversity, the less stable the ecosystem
The higher the biodiversity, the greater the stability of the ecosystem.
Biodiversity has nothing to do with ecosystem stability.
Which ecosystem is more likely to survive a change in the environment?
One with High biodiversity
One with Low biodiversity
A wetland being drained so a housing development can be built is an example of ____________.
habitat destruction
over exploitation
pollution
conservation
Habitat restoration can have a positive impact on biodiversity in an area.
True
False
A small marine area has phytoplankton as its only producer. Should the marine biologist be concerned about this ecosystem?
No the fish do not need the phytoplankton. Since there are so many fish, there is high biodiversity.
Yes, this system has high biodiversity; however the fish can adapt and get food from another source.
Yes, this ecosystem has low biodiversity. Without a producer the herbivores will die out leaving no food.
Yes, the fish will overate to get all of the phytoplankton that is left, then they will die.
When there is higher biodiversity...
more organisms are likely to die because they can't adapt to environmental changes.
there is more diversity and higher sustainability of life.
there is less diversity.
there is more diversity and lower sustainability of life
Why is biodiversity in an ecosystem so important?
Because it can help humans where to determine good places to develop farm land.
Because places that have a healthy biodiversity are unaffected by major disturbances.
Because having a high biodiversity allows for fewer opportunities of competition for similar resources.
Because having a high biodiversity allows ecosystems to withstand disturbances (major changes).
What happened to the biodiversity in Yellowstone national forest with the addition of wolves to that temperate forest ecosystem?
Increased
Decreased
Stayed the same
A reduction in the variety of pollinating insects would negatively affect the plant populations that depend on them. Which of the following describes the most serious impact this would have on humans?
Plants that don't need insects to pollinate would die
People would have to build new homes
Crops that humans use for food would be reduced
There would be a decrease in the availability of soil
A dark-eyed junco is a type of sparrow with white tail feathers. The white tails give males a high chance to be chosen as a mate. This species lives in forests in North America. Increasing air pollution has affected the white color on the tails and the sparrow species' mating process.
Which is the best solution to protect the junco's mating process?
Moving the juncos to a different forest so they can adapt to different trees
Limiting the amount of development near the forest, therefore reducing the amount of air pollution?
Growing various types of food for the juncos in the forest, thereby increasing the amount of rood for their predators
Removing old trees from the forest, therefore reducing the amount of habitat available for the juncos
A student listed four possible ways that natural resources could be conserved:
1. Water lawns less often.
2. Plant trees and shrubs to decrease soil erosion.
3. Develop more coal mines to increase coal production.
4. Use less fertilizers to decrease pollution in rivers from agricultural runoff.
Which methods would be the most effective at conserving natural resources?
1 & 2
2 & 4
1, 2, & 4
2, 3, & $
Sea turtles bury their eggs in the sand on beaches. The coastal town observes a population decrease in the nesting sea turtles. The town bans people from the beach during turtle nesting time.
Which problem is being addressed by banning access to the beach during this time?
The sea turtles have greater success reproducing, which increases their population.
The sea turtles are exposed to more pollution from people, which increases their population.
The sea turtles have less competition for food resources, which increases their population.
The sea turtles can have less ecosystem space, which increases their population.
