Ecosystems
Terrestrial Biomes
Aquatic Biomes
Succession
Biodiversity
100
Which sequence shows increasing ecological levels of organization?
organism, population, community, ecosystem
ecosystem, population, organism, community
community, ecosystem, population, organism
population, organism, ecosystem, community
What is organism, population, community, ecosystem.
100
Which of the following biomes is affected by deforestation?
taiga
chaparral
desert
grassland
What is the taiga.
100
Where can freshwater aquatic life zones NOT be found?
mangrove communities
streams
inland wetlands
lakes
What is inland wetlands
100
One of the roles of ecological succession is to encourage biodiversity in a habitat. Ecological succession occurs in stages and permits a habitat to allow new species to grow in number as the habitat
is destroyed.
is relocated.
remains the same.
undergoes change.
What is undergoes change
100
An environmental change can make an ecosystem more stable by
increasing the biodiversity of the ecosystem.
decreasing the biodiversity of the ecosystem.
decreasing the amount of producers in the ecosystem.
increasing the amount of consumers in the ecosystem
What is increasing the biodiversity of the ecosystem.
200
Why do higher trophic levels in most ecosystems contain fewer organisms than lower trophic levels?
Energy available for use to the highest trophic level is small
Energy available for use to the lowest trophic level is small.
Energy available for use to the highest trophic level is large.
Energy available for use to the highest and lowest trophic levels is the
same.
What is energy available for use to the highest trophic level is small.
200
Which of the following are the three primary ecosystems found on Earth?
grassland, rainforest, and ocean
freshwater, rainforest, and desert
freshwater, terrestrial, and ocean
grassland, terrestrial, and desert
What is freshwater, terrestrial, and ocean
200
An oil tank spilled oil into a neighboring freshwater pond. What will most likely happen to the pond ecosystem if the oil spill is not taken care of immediately?
The organisms living in the freshwater pond will not survive the change to their environment.
The organisms living in the freshwater pond will adapt very quickly to the new environment.
The organisms living in the freshwater pond will not be affected by the oil spill.
The organisms living in the freshwater pond will increase because of the oil spill.
What is the organisms living in the freshwater pond will not survive the change to their environment
200
The regrowth of a forest after a devastating fire is an example of what process?
primary succession
secondary succession
tertiary succession
intermediate succession
What is secondary succession
200
Which of the following will most likely occur from the modification of natural ecosytems by humans?
increased biodiversity
increased stability in the ecosystem
decreased carbon dioxide emissions
decreased biodiversity
What is decreased biodiversity.
300
Considering the energy that is lost as heat to the environment when one organism consumes another, which model correctly shows the trophic levels ranked from greatest energy to least?
herbivore►producer►top carnivore►primary carnivore
producer►herbivore►primary carnivore►top carnivore
primary carnivore►top carnivore►producer►herbivore
top carnivore►primary carnivore►herbivore►producer
What is producer►herbivore►primary carnivore►top carnivore.
300
Which land biome has more species than all the other biomes combined?
tropical rainforest
desert
temperate forest
savannah
What is tropical rainforest
300
What is the most important reason to carefully protect sources of freshwater?
Polluted freshwater can carry diseases to animals.
Polluted freshwater can lead to polluted oceans.
Freshwater is not renewed by rainfall very often.
Freshwater is a limited resource and all living things need it.
What is Freshwater is a limited resource and all living things need it.
300
Which of the following statements is true?
Ecological succession in an area may follow the same sequence over and over.
Ecological succession in an area is always different from the time before.
Ecological succession only occurs in environments that have a body of water.
Ecological succession only occurs in environments that have forests.
What is ecological succession in an area is always different from the time before.
300
Which of the following is the effect of selective breeding of plants and animals on biodiversity?
Selective breeding decreases biodiversity.
Selective breeding increases biodiversity.
Selective breeding does not affect biodiversity.
Selective breeding decreases, and then increases biodiversity.
What is selective breeding decreases biodiversity.
400
The table shows some observations made by four students during a field trip to a nature area.
Which student observed a community of organisms?
Student 1
Student 2
Student 3
Student 4
What is Student 2.
400
An abnormal drought combined with an extended period of hot weather can cause a wildfires in some of Earth's biomes. Which biome would be least likely to experience a wildfire caused by these factors?
tundra
savanna
grassland
temperate forest
What is the tundra
400
Which of the following is NOT a role that tourism plays in exploiting marine life?
forcing drastic changes to common marine diets
adding to the levels of marine debris
exposing very delicate areas to traffic
boosting the sales of products like tortoise shell and corals
What is exposing very delicate areas to traffic
400
Ecological succession can end when a community is not replaced by another one. This community is called a "climax community." Which of the following would dominate the climax community shown in the ecological succession of the pond?
tall tree
slow-growing plants
green algae
tall-growing grasses
What is tall tree
400
When farmers clear a forest and plant crops, how will the biodiversity of the land be affected?
The biodiversity will decrease with higher populations of fewer species.
The biodiversity will increase with lower populations of more species.
The biodiversity will decrease with lower populations of more species.
The biodiversity will increase with higher populations of fewer species.
What is the biodiversity will decrease with higher populations of fewer species.
500
Atmospheric nitrogen has to be combined with other elements, or fixed, in order to be used by
plants. Lightning is one way that nitrogen is fixed. When lightning occurs, the extreme heat
breaks the bonds in nitrogen molecules, allowing nitrogen to combine with oxygen and form
nitrogen oxides. In what way is most of the nitrogen fixed by lightning made available for use by plants?
It is moved by the wind toward dry areas.
It is incorporated into the exoskeletons of flying insects that eat plants.
It is inhaled and exhaled by birds roosting in trees during rainstorms.
It is carried by rain to the soil.
What is It is carried by rain to the soil.
500
Wetland ecosystems have soils that are covered by water for the majority of the plant-growing season. A wetland environment will most likely support populations of plants that survive in
oxygen-poor soils as well as terrestrial animals.
oxygen-rich soils as well as terrestrial animals.
oxygen-poor soils as well as aquatic animals.
oxygen-rich soils as well as aquatic animals.
What is the oxygen-poor soils as well as terrestrial animals.
500
What will be an effect of dumping plastic waste into the ocean?
The waste will be used by marine animals to make homes.
The waste will sink to the bottom of the ocean, disintegrating quickly due to the high water pressure.
The waste will float on the ocean's surface, trapping and suffocating marine animals.
The waste will be used as a food source for some marine animals.
What is the waste will float on the ocean's surface, trapping and suffocating marine animals.
500
What is one difference between primary and secondary succession?
Primary succession is slow and secondary succession is rapid.
Secondary succession begins on soil and primary succession begins on virtually lifeless areas.
Primary succession modifies the environment, and secondary succession does not.
Secondary succession begins with lichens and primary succession begins with trees.
What is secondary succession begins on soil and primary succession begins on virtually lifeless areas.
500
What is the greatest threat to biodiversity today?
rainforests
reduction of hunting or fishing
habitat destruction
conservation efforts
What is habitat destruction