30 Questions
What is the term used to describe the use of organisms like bacteria, fungi or plants to remove toxins from an ecosystem?
Bioremediation
What is the term used to describe a strategy for adding essential material to a degraded system to speed up its recovery?
Bioaugmentation
What percentage of the Earth's surface do the 34 biodiversity hotspots identified by Conservation International cover?
2.3%
What percentage of the world's plants are found in the 34 biodiversity hotspots identified by Conservation International?
50%
What is the population of the United States according to the information provided?
320 million
What is the combined population of the seven countries mentioned in the text?
730 million
Which of the following is NOT a factor that affects population size?
Photosynthesis
What is the relationship between natality and population growth?
Natality is directly proportional to population growth
Which of the following is a characteristic of the exponential growth model?
The growth rate is constant and independent of population size
What is the relationship between the logistic growth model and carrying capacity?
The logistic growth model assumes that population growth is limited by carrying capacity
Which of the following is a characteristic of the dispersal patterns described in the text?
Clumped dispersal is when individuals are concentrated in certain areas of the habitat
What is the relationship between mortality rate and population size according to the text?
Mortality rate is inversely proportional to population size
How does acid precipitation primarily occur?
Due to the presence of sulfur oxides and nitrogen oxides reacting with water
What is the main impact of acid rain on freshwater habitats?
Lowering the pH of lakes and contaminating freshwater habitats
How does acid rain affect photosynthesis?
Inhibits photosynthesis by leaching nutrients off soil
Which group of organisms is most affected by acid rain?
Fish, amphibians, and aquatic invertebrates
How can acid rain indirectly impact forest fires?
Increasing the incidence of forest fires
What is the key role of CO2 in the greenhouse effect?
CO2 traps heat generated by the sun within the atmosphere
Why does a population that fits the logistic growth model increase more rapidly at intermediate size compared to relatively small and large sizes?
Intermediate sizes provide the optimal balance of resources, reducing competition and allowing for faster growth.
What are three things included in life history traits?
Reproductive strategy, size, and longevity
How does r-selection differ from K-selection?
r-selected species have a high reproductive rate and low survival rate while K-selected species have low reproductive rates and high survival rates.
What is the density of blue jays per hectare if there are 300 blue jays in a 20-hectare plot?
30 blue jays/hectare
What is an effect of habitat loss on biodiversity?
Higher chances of extinction for various species
How can ecosystems recover after ecological disturbance?
Through natural processes like ecological succession
What is the purpose of using the Lincoln Index in population estimation?
To estimate the size of a population based on marked individuals in two captured samples.
In the context of the text, what does 'n1' represent in the Lincoln Index equation?
The number of marked individuals in the first captured sample.
What is one advantage of using mark-recapture studies in population estimation?
It is suitable for estimating populations of mobile species.
What is an essential step after marking and releasing captured individuals in the Lincoln Index method?
Recapturing as many individuals as possible after a period of time.
Which data should be collected in Capture 2 during a mark-recapture study?
The count of beans marked and unmarked in the second capture.
Why do researchers allow the sample to settle back into the environment for 24 hours in mark-recapture studies?
To ensure that all individuals have an equal chance of being recaptured.
Test your knowledge on restoration ecology and bioremediation, focusing on the use of organisms like bacteria, fungi, and plants to remove toxins from damaged ecosystems. Explore concepts such as hotspots, bioaugmentation, and the addition of essential materials to degraded systems.
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