Ecology Practice Questions
Quiz by Sean Ogren
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- Q1
Maria counts 157 frogs living in a pond. What did she calculate?
Population density
Population explosion
Population distribution
120s - Q2
Armen observes that most of the zebras in a wild animal park stay close together in groups of 6 to 8 to help protect against predators. Which best describes this arrangement?
Population distribution
Social animosity
Population density
120s - Q3
Arevik has noticed that there are fewer and fewer cardinals in her backyard this year. What is one possible reason for the smaller number of cardinals?
Emigration
Immigration
Exponential growth
120s - Q4
What is a carrying capacity?
The largest population within an environment
The highest number at which a population can grow in its environment
The weight limit that an animal can carry on its back
120s - Q5
Meg is studying a population of chipmunks in the midwest. Compared to a few years ago, the chipmunks are increasing the areas in which they can be found; more and more are being discovered in areas they've never been seen before. Which statement best describes what is happening to the chipmunk population?
They are reaching carrying capacity in the midwest.
Their geographic range is increasing.
They are emmigrating out of the midwest.
120s - Q6
What kind of growth is represented by this graph?
Exponential growth
Logistic growth
Linear growth
120s - Q7
If a population has already reached its carrying capacity and their numbers increase due to immigration, what will happen to the population?
Predators of the population will increase exponentially
Its carrying capacity will increase
Some of the population will die due to lack of resources
120s - Q8
A variety of organisms in a given area is called what?
Population ecology
Resilience
Biodiversity
120s - Q9
One of the benefits of biodiversity is the ability of an ecosystem system to recover after a disturbance. What is this called?
Services
Resilience
Conservation
120s - Q10
Other benefits of healthy ecosystems include an increased ability to pollinate crops, regulate pests, and maintain soil structure. What are these benefits called?
Conservation
Services
Resilience
120s - Q11
A pond supports a variety of habitats in the water and along the shore. What type of biodiversity does this represent?
Ecosystem diversity
Genetic diversity
Species diversity
120s - Q12
A variety of insects, snakes, and small mammals live in a meadow. What type of biodiversity does this represent?
Species diversity
Ecosystem diversity
Genetic diversity
120s - Q13
Field mice differ from one another in fur color, fur thickness, and ear shape. What type of biodiversity does this represent?
Genetic diversity
Species diversity
Ecosystem diversity
120s - Q14
All healthy, highly productive ecosystems provide which of these essential ecosystem services?
Plants and other organisms purify the water
Insects help pollinate the plants
Both of these are helpful benefits
120s - Q15
Mr. Rojas, a biology teacher, asks his class to evaluate two examples of changes to a pond ecosystem. The table summarizes the examples.
Based on the results shown in the table, Mr. Rojas's class can evaluate which property of the pond ecosystem?
the carrying capacity of the pond’s organisms
the resilience of the pond ecosystem to different types of changes
the benefits provided by biodiversity within the pond ecosystem
300s
