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Multiple Choice

Which type of population dispersion is characterized by resources being spread unevenly, so individuals group wherever the resources are located?

• Clumped

• Uniform

• Random

• Environmental

Multiple Select

Click density dependent factor(s).

• competition for resources

• predator-prey relationships

• parasitism and disease

• weather

Multiple Choice

A graph that shows the number or proportion of individuals surviving to each age for a given species or group.

• survivorship curve

• exponential

• linear

• logistic

Multiple Choice

At what hour did the bacterial population carrying capacity?

• 1-7 hours

• 8-14 hours

• 14-17 hours

• 18 hours - 24 hours

Multiple Choice

If the amount of food or resources available increases, the carrying capacity for an animal:

• Stays the same
• Increases
• Decreases
• Fluctuates

Multiple Choice

The wolf goes extinct, and the deer population has no predator to worry about. They graze the land. Because there is no more food. Some of the deer begin to bite at each other, while others die of starvation. What is the limiting factor to the deep population?

• Competition

• Overcrowding

• Predator-Prey Relationships

• Herbivory Effect

Multiple Choice

What is an example of a density-independent (Abiotic) limiting factor?

• food

• parasites

• disease

• pollution

Multiple Choice

What is the carrying capacity for this sheep population?

• 1.8 million
• 1.25 million
• 1.6 million
• 1.o million

Multiple Choice

Which of the following is an example of mutualism in ecological interactions?

• A lion hunting a zebra

• Bees pollinating flowers

• A bird eating a worm

• A parasite living on a host

Multiple Choice

Identify the primary producers in a typical food chain.

• Herbivores

• Carnivores

• Plants

• Decomposers

Multiple Choice

How do disturbances such as fires impact ecological succession?

• They prevent any form of succession from occurring.

• They reset succession to an earlier stage, allowing new growth.

• They accelerate the process of reaching a climax community.

• They have no impact on ecological succession.

Multiple Choice

Analyze the impact of removing a top predator from a food web.

• It will have no effect on the ecosystem.

• It will increase the population of primary producers.

• It will cause an increase in herbivore populations, potentially leading to overgrazing.

• It will lead to the extinction of all species in the food web.

Multiple Choice

Which of the following is a key component of the carbon cycle?

• Photosynthesis

• Nitrogen fixation

• Evaporation

• Erosion

Multiple Choice

Predict the consequences of nutrient depletion in an ecosystem.

• Increased biodiversity

• Enhanced growth of primary producers

• Decline in plant growth and reduced energy flow through the food web

• No impact on the ecosystem

Multiple Choice

What is the role of apex predators in an ecosystem?

• They are primary producers.

• They help control the population of herbivores and maintain balance.

• They decompose organic matter.

• They compete with decomposers for nutrients.

Multiple Choice

Which interaction type is it when different male lions strive to find territories?

• Intraspecific Competition

• Interspecific Competition

• Commensalism

• Mutualism

Multiple Choice

A crab is protected from fish when an anemone rides on its shell. The anemone gets more food.

• Commensalism

• Competition

• Predation

• Mutualism

Multiple Choice

This interaction occurs when lions, cheetahs, and leopards all need the same food source.

• Intraspecific Competition

• Interspecific Competition

• Predation

• Mutualism

Multiple Choice

Orchid vines are skinny and grow on the trunk of trees to get more light and space with no negative effect.

• Mutualism

• Commensalism

• Parasitism

• Competition

Multiple Choice

When the population of predators gets too high...

• Prey pop. will increase--> predator pop. will increase

• Prey pop. will decrease--> predator pop. will increase

• Prey pop. will decrease--> predator pop. will decrease

• It depends on the biome

Multiple Choice

Parasites and predators help maintain ecosystem stability because...

• They increase the population of all organisms so ecosystems become diverse

• They decrease the population of certain organisms to ensure no species overpopulates

• They increase the survival of all species

• Any of the above are possible

Multiple Select

What are some reasons ecosystems are being destroyed?

Select all that apply.

• Humans need land for food

• There is a growing number of animals being born

• There aren't enough animals dying

• The human population in increasing

Multiple Choice

Humans often change ecosystems as a result of population growth, consumption, and technology. Which of the following exemplifies a way in which humans modify ecosystems? 

• factory and automotive emissions causing acid rain 
• redirecting and storing freshwater behind dams 
• cutting down trees to build new buildings and roads 
• all of these

Multiple Choice

Which human activity contributes the MOST carbon dioxide to the atmosphere?

• Fishing
• Breathing
• Burning Fossil Fuels
• Farming

Multiple Choice

What is true about ecosystems with very high biodiversity?

• They are unstable and threatened by environmental changes

• They more stable and are more likely to recover from environmental changes.

• They have so much competition that it harms most organisms

• The environmental conditions tend to be very harsh in these ecosystems

Multiple Choice

Which statement best describes one of the levels of this pyramid?

• Level A contains the largest producers in the pyramid.

• The organisms in level B obtain food directly from level A.

• Level C contains the largest group of consumers in the pyramid.

• Level D contains the greatest number of heterotrophs in the pyramid.

Multiple Choice

To the right you will see an image of barnacles attached to a whale. The whale neither benefits nor is harmed by the barnacles. The barnacles benefit from being attached to the whale. What type of symbiotic relationship is being exemplified?

• Commensalism

• Parasitism

• Mutualism

• Predation

Multiple Choice

A climax community is generally established most directly as a result of a

• Catastrophic climate change

• Series of successive ecological stages

• Long period of evolutionary change

• Change in the dominant animals

Multiple Choice

A heterotroph that benefits at the expense of its living host is known as a

• Parasite

• Decomposer

• Scavenger

• Producer

Multiple Choice

Which level of the pyramid contains autotrophic organisms?

• A

• B

• C

• D

Multiple Choice

Which is a possible food chain derived from this energy pyramid?

• Sunfish → algae → great blue heron → crustaceans

• Great blue heron → sunfish → crustaceans → algae

• Great blue heron → crustaceans → sunfish → algae

• Algae → crustaceans → sunfish → great blue heron

Multiple Choice

Which of the following best describes a keystone species?

• A species that is the most abundant in an ecosystem

• A species that has a disproportionately large impact on its ecosystem

• A species that is at the top of the food chain

• A species that is the primary producer in an ecosystem

Multiple Choice

Which of the following is an example of mutualism?

• A lion hunting a zebra

• A bee pollinating a flower

• A tick feeding on a dog

• A bird eating insects off a buffalo

Multiple Choice

Which process converts atmospheric nitrogen into a form usable by plants?

• Photosynthesis

• Respiration

• Nitrogen fixation

• Decomposition

Multiple Choice

Which type of population dispersion is characterized by resources being evenly distributed in an ecosystem?

• Clumped

• Uniform

• Random

• Environmental

Multiple Choice

Which survivorship curve is characterized by fewer offspring being born, but most live longer?

• Type I

• Type II

• Type III

• Type IV

Multiple Choice

Which survivorship curve is characterized by survivorship being roughly equal at all life stages?

• Type I

• Type II

• Type III

• Type IV

Multiple Choice

Which survivorship curve is characterized by many offspring being born, but fewer of them survive?

• Type I

• Type II

• Type III

• Type IV

Multiple Choice

Which type of population growth is characterized by individuals reproducing at a constant rate and resources appear unlimited?

• Exponential

• Logistic

• Both Exponential and Logistic

• Neither Exponential nor Logistic

Multiple Choice

Which type of population growth shows growth rate slowing or stopping due to resources becoming less available, resulting in a stabilized growth at the carrying-capacity?

• Exponential

• Logistic

• Both Exponential and Logistic

• Neither Exponential nor Logistic

Multiple Choice

_________ is the largest number or individuals that a given environment can support

• Population Capacity

• Population Growth

• Maximum Capacity

• Carrying Capacity

Multiple Choice

Which type of population dispersion is shown in this picture?

• Clumped

• Random

• Uniform

• None of the Above

Multiple Choice

Which type of population dispersion is shown in this picture?

• Clumped

• Random

• Uniform

• None of the Above

Multiple Choice

Which type of population dispersion is shown in this picture?

• Clumped

• Random

• Uniform

• None of the Above

Multiple Choice

Which description best fits Line A?

• It shows logistic growth.

• It shows exponential growth.

• It shows the carrying capacity.

• It shows linear growth of a population.

Multiple Choice

Which description best fits Line B?

• It shows logistic growth.

• It shows exponential growth.

• It shows the carrying capacity.

• It shows linear growth of a population.

Multiple Choice

Nesting birds often space themselves evenly from other nests. This pattern is called

• clumped dispersion.
• uniform dispersion.
• random dispersion
• scatter dispersion

Multiple Choice

What type of growth is shown on this graph?

• logistic
• exponential
• average
• density-independent

Multiple Choice

At what stage does this population reach it's carrying capacity on the Demographic Transition Model

• 1
• 2
• 3
• 4

Multiple Choice

 At what amount of yeast does the population in Figure 14.3 level off?

• 3.0 mg/cc
• 1.5 mg/cc
• 6.0 mg/cc
• 4.5 mg/cc

Multiple Choice

The graph below represents the growth of a population of flies in a car? Which of the following statements best describes the graph?

• The fly population did not change.

• The fly population decreased, then increased.

• The fly population grew following the logistic growth model.

• The fly population grew following the exponential growth model.

Multiple Choice

Which point on the graph best represents the carrying capacity?

• Letter A

• Letter C

• Letter E

• Letter D

Multiple Choice

In which month(s) did the Cottontail Rabbits reach their carrying capacity?

• January and February

• March and May

• April and January

• April and May

Multiple Choice

A convergent boundary is formed when

• plates move apart

• plates push together

• plates slip past each other

Multiple Choice

Many woodpeckers eating at a bird feeder is an example of -

• predation

• mutualism

• competition

• commensalism

• parasitism

Multiple Choice

An owl snatching a mouse from a field to eat is an example of -

• predation

• mutualism

• competition

• commensalism

• parasitism

Multiple Choice

An orchid using a high tree branch as a place of attachment to receive more sunlight but not affecting the tree is an example of -

• predation

• mutualism

• competition

• commensalism

• parasitism

Multiple Choice

What happens to the population of a species after it reaches its carrying capacity?

• Increases linearly (in a straight line) over time.

• Increases exponentially (line is curved) over time.

• Decreases to zero in a very short amount of time.

• Remains relatively the same.

Multiple Choice

A large population of geese gathered together in a marsh is which type of dispersion?

• Clumped dispersion

• Uniform dispersion

• Random dispersion

Multiple Select

Why has the world population dramatically increased?

[select ALL that apply]

• Medicine

• Sanitation

• Technology

• Disease

Multiple Choice

What growth rate does this population pyramid represent?

• RAPID GROWTH

• SLOW GROWTH

• STABLE

• DECLINING

Multiple Choice

Which country is the less developed of the two?

• Kenya

• Japan

• Both are of equal development

• None of the above