Ecology Practice Test

Descrição

9th grade Biology Quiz sobre Ecology Practice Test, criado por Jessica Dewald em 17-02-2019.
Jessica Dewald
Quiz por Jessica Dewald, atualizado 6 meses atrás
Jessica Dewald
Criado por Jessica Dewald mais de 5 anos atrás
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Resumo de Recurso

Questão 1

Questão
What do we call the movement of organisms into a given area from another area?
Responda
  • population shift
  • immigration
  • emigration
  • carrying capacity

Questão 2

Questão
What plant species in the figure below represents a pioneer species if the area is undergoing primary succession?
Responda
  • shrubs
  • grasses
  • lichens
  • deciduous trees
  • coniferous trees

Questão 3

Questão
Which of the following is a density-independent limiting factor?
Responda
  • seasonal cycles
  • competition
  • crowding
  • disease

Questão 4

Questão
Which part of the graph represents exponential growth for the population?
Responda
  • A
  • B
  • C
  • D

Questão 5

Questão
The graph represent _____ growth, and rabbits are ___ reproductive strategists.
Responda
  • logistic, R
  • exponential, R
  • logistic, K
  • exponential, K

Questão 6

Questão
If the humans eliminate a predator, how would this initially affect the number of prey animals?
Responda
  • The number would rapidly decrease
  • The number would increase
  • The number would remain constant
  • The number would slowly decrease

Questão 7

Questão
Which of the following in not one of the factors that plays a role in population growth rate?
Responda
  • population density
  • immigration
  • death rate
  • emigration

Questão 8

Questão
Which statement best describes the fruit fly population in the part of the curve labeled X in the graph shown in the figure below.
Responda
  • The fruit fly population can no longer mate and produce fertile offspring
  • The fruit fly population has reached the number of organisms that habitat can support
  • The fruit fly population is no longer able to adapt to the changing environmental conditions
  • The fruit fly population has an average lifespan of 36 days

Questão 9

Questão
Which meadow has the greatest biodiversity?
Responda
  • Meadow A
  • Meadow B
  • Meadow C
  • Not enough information

Questão 10

Questão
The human population experienced exponential growth after....
Responda
  • the industrial revolution began
  • the bubonic plague occurred
  • agriculture began
  • plowing and irrigation began

Questão 11

Questão
What is one difference between primary and secondary succession?
Responda
  • secondary succession begins on soil, and primary succession begins on bare rock
  • Primary succession modifies the environment, and secondary succession does not
  • Primary succession is slow, and secondary succession is rapid
  • secondary succession begins with lichens, and primary succession begins with trees

Questão 12

Questão
When individuals in a population reproduce at a constant rate, it is called...
Responda
  • exponential growth
  • growth density
  • logistic growth
  • multiple growth

Questão 13

Questão
Why does the white-tailed deer population drop when carrying capacity is exceeded?
Responda
  • resources are too low to support the population
  • competition by other animals is greatly reduced
  • the height of edible plants exceeds the height of the deer
  • weather changes reduce the deer population

Questão 14

Questão
The graph shows the average number of rabbits and coyotes in an area over time. Which conclusion is best supported by these data?
Responda
  • The number of coyotes will be greater than the number of rabbits within a ten-year period
  • The number of rabbits will decrease during summer months
  • The rabbit population obtains energy by consuming young plants
  • The coyote population is influenced by the available number of rabbits

Questão 15

Questão
A herd of deer lives in an area of Northwest Ohio between two major interstate highways. As the population continues to grow, several deer die from starvation. This example in which type of limiting factor?
Responda
  • density-independent
  • density-dependent
  • abiotic factor
  • none of the above

Questão 16

Questão
When organisms move out of the population, this is known as ....
Responda
  • emigration
  • immigration
  • abandonment
  • succession

Questão 17

Questão
From the graph, determine which time period are birth and death rate equal?
Responda
  • A
  • B
  • C
  • D

Questão 18

Questão
There are 150 Saguro cactus plants per square kilometer in certain area of Arizona desert. To which population characteristic does this information refer?
Responda
  • geographic distribution
  • growth rate
  • population density
  • age structure

Questão 19

Questão
The graph shows the interactions of two populations. Population A is made up of living animals. The members of population B feed on these animals. The members of population B are most likely...
Responda
  • autotrophs
  • prey
  • parasites
  • predators

Questão 20

Questão
An undisturbed squirrel population grows until its carrying capacity is reached. Which of the graphs below best resembles this squirrel population?
Responda
  • A
  • B
  • C
  • D

Questão 21

Questão
The graph below shows the interaction of the wolf and moose populations on Isle Royale. If the moose population continues to decrease, the wolves' food supply will decrease. What will most likely happen to the wolf population as a result?
Responda
  • decreases
  • increase slightly
  • remain the same
  • increase greatly

Questão 22

Questão
What must occur in a population in order for it to grow?
Responda
  • the birth rate and death rate remain the same
  • the birth rate becomes lower than the death rate
  • the birth rate stays the same and the death rate increases
  • the birth rate becomes higher than the death rate

Questão 23

Questão
Which of the following has caused the human population growth rate to increase?
Responda
  • a shift towards an older population
  • famine and drought
  • the frequency and severity of common diseases
  • improvements in nutrition, medicine, and sanitation

Questão 24

Questão
The table shows how several different populations have changed over a one year time span. Look at each population and determine which population has had an overall increase?
Responda
  • population A
  • population B
  • population C
  • population D

Questão 25

Questão
On what trophic level would you find organisms that use the sun's energy directly to make their own food?
Responda
  • 1
  • 2
  • 3
  • 4

Questão 26

Questão
The ultimate source of energy for all organisms in life is:
Responda
  • water
  • oxygen
  • nitrogen
  • the sun

Questão 27

Questão
An animal that only eats the flesh of another animal is called a:
Responda
  • producer
  • herbivore
  • carnivore
  • omnivore

Questão 28

Questão
In the following food chain, which organism is the secondary consumer? grass ------> rabbit -------> snake ------> hawk
Responda
  • grass
  • rabbit
  • snake
  • hawk

Questão 29

Questão
In the above food chain, the snake is an example of a:
Responda
  • producer
  • primary consumer
  • secondary consumer
  • tertiary consumer
  • quaternary consumer

Questão 30

Questão
Which of the following organisms is an autotroph?
Responda
  • algae
  • bear
  • cheetah
  • fish

Questão 31

Questão
The image represents what type of relationship?
Responda
  • competition
  • mutualism
  • parasitism
  • predator/prey

Questão 32

Questão
In the terrestrial food web above, what would be the effect of a farmer introducing a rat poison into the ecosystem that is toxic to rats and mice?
Responda
  • the population of fox would decrease
  • the population of grasshoppers would decrease
  • the population of hawks would increase
  • the population of rabbits would decrease

Questão 33

Questão
Which of the following is an abiotic factor in an ecosystem?
Responda
  • bird
  • tree
  • rock
  • deer

Questão 34

Questão
Sea anemones contain a venom that is used to sting and paralyze their prey. The clownfish contains an enzyme in their scales that makes them immune to the venom. This allows them to freely live in the sea anemone without being harmed providing the clownfish with protection. This is an example of what type of relationship?
Responda
  • predator-prey
  • mutualism
  • commensalism
  • parasitism

Questão 35

Questão
Lichen is a symbiotic decomposer that attaches itself to trees and slowly breaks them down. They obtain nutrients from the tree, allowing them to survive and reproduce while the tree slowly dies. What type of relationship is this?
Responda
  • predator-prey
  • mutualism
  • parasitism
  • competition

Questão 36

Questão
Mushrooms and other fungi are responsible for breaking down dead organic matter. In the ecosystem, they are called:
Responda
  • producers
  • consumers
  • decomposers
  • scavengers

Questão 37

Questão
The amount of energy that is passed from one organism to the next in a food chain is:
Responda
  • 5%
  • 10%
  • 15%
  • 20%

Questão 38

Questão
In an energy pyramid, the bottom level represents:
Responda
  • consumers
  • producers
  • scavangers
  • decomposer

Questão 39

Questão
In an energy pyramid, the lowest level has:
Responda
  • less energy than the top level
  • less energy than the second level
  • more energy than the top level
  • the same amount of energy is available to a consumer

Questão 40

Questão
Decomposers are important to ecosystems because they:
Responda
  • are at the highest level of the energy pyramid
  • change simple compounds into more complex ones
  • convert light energy into sugars through photosynthesis
  • make nutrients available for producers to use

Questão 41

Questão
All the following are examples of limiting factors for a population EXCEPT:
Responda
  • space
  • food
  • time
  • weather

Questão 42

Questão
As populations grow individuals tend to compete for
Responda
  • resources
  • stress
  • independence

Questão 43

Questão
An animal that eats only plants is a:
Responda
  • primary consumer
  • secondary consumer
  • tertiary consumer
  • primary producer

Questão 44

Questão
Which of the following is an example of an ecosystem?
Responda
  • air, water, grass, badgers
  • air, water, sunlight, and soil
  • hawks, mouse, badgers, and eagles
  • grass, trees, bushes, and flowers

Questão 45

Questão
The plant receives 3456.8 kcal of energy from the sun. How much energy will the snake end up with? [blank_start]3.4568[blank_end] kcal of energy.
Responda
  • 3.4568

Questão 46

Questão
Biomagnification is when toxins, such as mercury and DDT, increase in the amount present in an organism as you move up in the food chain/web.
Responda
  • true
  • fasle

Questão 47

Questão
Which organism in the food chain would contain the highest levels of DDT poisoning?
Responda
  • snake
  • cricket
  • plant
  • owl

Questão 48

Questão
Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while species B feeds on caterpillars. The two species coexist successfully because
Responda
  • each occupies a different niche
  • they interbreed
  • they use different methods of reproduction
  • birds compete for food

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