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- 1. Multiple Choice
The picture shows a reef environment. The stingray resting on the bottom of the reef represents
a community.
a population
an organism
an ecosystem
- 2. Multiple Choice
All of life on Earth exists in
a single ecosystem
a single biome
the biosphere
the hydrosphere
- 3. Multiple Choice
What term describes all of the members of a species of mockingbirds that live in the same area of Tampa?
a biome
a population
a community
an ecosystem
- 4. Multiple Choice
Which of the following statements is most likely correct?
The amount of energy is identical in each level of the pyramid.
The amount of energy increases at each successive level from D to A.
The total amount of energy at level D is less than the total amount of energy at level B.
The total amount of energy needed to sustain the pyramid enters the ecosystem at level C.
- 5. Multiple Choice
A student is investigating the population size of rabbits in a woodland ecosystem. She researches the known population of rabbits over 125 years and creates a graph representing the rabbit population with a solid line and the ecosystem's carrying capacity with a dotted line. Based on the information in the graph, what conclusion can the student draw about the time period between 1800 and 1835?
The rabbit population had many limiting factors and the ecosystem was beyond its carrying capacity.
The rabbit population had few limiting factors and the ecosystem was beyond its carrying capacity.
The rabbit population had many limiting factors and the ecosystem had not yet reached its carrying capacity.
The rabbit population had few limiting factors and the ecosystem had not yet reached its carrying capacity.
- 6. Multiple Choice
Which of the following refers to a population reaching a size that can no longer be supported by available resources in the surrounding environment?
exponential growth
survivorship
environmental resistance
carrying capacity
- 7. Multiple Choice
How do nutrients, such as carbon and water, move through an ecosystem?
in biogeochemical cycles
in ecological pyramids
in energy pyramids
in food webs
- 8. Multiple Choice
The picture that represents a community is
W, a group of one type of organism interacting in an environment.
X, many types of organisms interacting with their nonliving environment.
Y, a single lion resting by itself and not interacting.
Z, a group of zebras and wildebeests interacting.
- 9. Multiple Choice
Which picture represents an organism?
W
X
Y
Z
- 10. Multiple Choice
Which picture represents an ecosystem?
W
X
Y
Z
- 11. Multiple Choice
The main difference between the water cycle and all the other biogeochemical cycles is that water_______.
creates completely new substances
is made from matter that has been here since the world was formed
never changes its structural form
is much slower than the other cycles
- 12. Multiple Choice
Converting atmospheric nitrogen into a usable form by bacteria or lightning is known as _______.
nitrogen fixation
denitrification
ammonification
assimilation
- 13. Multiple Choice
Which statement best explains how the animals in the diagram contribute to the carbon cycle?
They eat plants and other organisms that contain carbon which prevents it from ever being stored.
They eat plants and other organisms which contain carbon and deposit carbon into the soil when they die.
They remove carbon from the atmosphere during respiration and replace it with oxygen that is used in photosynthesis.
They remove carbon from the soil during respiration and exchange it with oxygen that evaporates into the atmosphere.
- 14. Multiple Choice
The process by which water, wind, ice, and changes in temperature break down rock into fragments called sediments.
Deposition
Erosion
Weathering
Igneous Rock
- 15. Multiple Choice
Which of the following are biotic factors in an ecosystem?
Water, Trees, Rocks
Air, Fish, Temperature
Bears, Soil, Fish
Trees, Fish, Bears
- 16. Multiple Choice
Which heading belongs to box A?
Aquatic Biomes
Terrestrial Biomes
Biosphere
Communities
- 17. Multiple Choice
Which heading belongs to box B?
Tundra
Grassland
Temperate Forest
Taiga
- 18. Multiple Choice
Which heading belongs to box C?
Hot, constant rainfall
Permafrost
Hot, low rainfall
Strong prevailing winds
- 19. Multiple Choice
The floras box D would probably include?
Lichens
Maple Trees
Conifers
Cactus
- 20. Multiple Choice
The faunas in box E would probably include?
Caribou and Polar Bear
Bison and Antelope
Red Fox and Whitetail Deer
Monkeys and Snakes
- 21. Multiple Choice
While hiking up a steep trail in the Adironack Mountains of New York State, a hiker first passes through a deciduous forest and then through an area of evergreen trees.
The transition from one biome to another along trail is most similar to the transition of biomes that occurs with increasing________________.
Latitude
Sunlight
Temperature
Precipitation
- 22. Multiple Choice
Western coral snakes have a striped color pattern and are poisonous. Arizona mountain king snakes look like western coral snakes but are not poisonous.
The color pattern of the Arizona mountain king snake is an example of ______________.
Camouflage
Mimicry
Parasitism
Competition
- 23. Multiple Choice
The Venus Flytrap plant lives in soil with few nutrients. The plant absorbs nutrients by trapping insects inside its leaves.
The ability of the Venus flytrap to trap insects is an example of which of the following?
Camouflage
Mimicry
Adaptation
Competition
- 24. Multiple Choice
What characteristic of a cactus could be found in many other desert plants?
Leaves and stems that are adapted to conserve water
A deep root system for gathering water
Lush growth that serves to trap water if it rains
Broad leaves that protect the plants from the hot sun
- 25. Multiple Choice
Which is NOT an example of a behavioral adaptation?
A leaf frog changes its appearance to match their surroundings.
A chipmunk hibernates during the winter season.
An Artic Tern migrates from the Arctic to Antarctica to search for food.
The desert rat burrowed under the bush until the temperature cooled down.
- 26. Multiple Choice
Which biome is characterized by considerable variability in rainfall and temperature and the presence of antelope and bison?
Grassland
Tundra
Tropical Rainforest
Temperate Rainforest
- 27. Multiple Choice
A deep sleep that allows some animals to survive through the winter
Social Interaction
Camouflage
Hibernation
Mimicry
- 28. Multiple Choice
Any physical structure (body part or covering) or behavior that helps an animal survive
Behavioral adaptation
Physical adaptation
mimicry
Learned behavior
- 29. Multiple Choice
Seasonal movement of animals to find food, lay eggs, give birth, breed, etc.
Migration
Social interaction
Warning coloration
learned behavior
- 30. Multiple Choice
A place where an organism or group of organisms live and obtain food, air, water, shelter or space, or light needed to survive is called _____________.
An adaptation
A niche
A habitat
Community
- 31. Multiple Choice
What is the most stable stage of this sequence?
Grass stage
Pine forest stage
Shrub stage
Hardwood Forest stage
- 32. Multiple Choice
What is the least stable stage of this sequence?
Hardwood forest stage
Shrub stage
Grass stage
Pine forest stage
- 33. Multiple Choice
In which stages do plant species modify the environment, eventually making way for other plant communities?
Grass, Shrub, and Pine forest Stages
Hardwood forest stage, only
Shrub, Pine forest, and Hardwood forest stages
Grass stage, only
- 34. Multiple Choice
Which phrase best describes the sequence of diagrams?
The development of a terrestrial ecosystem into an aquatic ecosystem.
The replacement of a natural community in an orderly manner.
The path of energy through a food web in a natural community.
The alteration of an ecosystem by a natural disaster.
- 35. Multiple Choice
What is the ultimate function of ecological succession in an environment?
to create different types of environments on Earth
to form environments that can never be destroyed
to limit the kinds of organisms that live in an environment
to rebuild biodiversity through natural stages
- 36. Multiple Choice
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.
- 37. Multiple Choice
Sustainability is defined as the ability of an ecosystem to survive over time. How does biodiversity affect the sustainability of an ecosystem?
It introduces fewer new species of organisms.
It helps to keep the ecosystem balanced.
It allows organisms to avoid competition.
It creates a constant state of change
- 38. Multiple Choice
Which of the following is the best reason to protect a section of an oak forest?
to prevent oak trees from reproducing too quickly
to cause the extinction of undesirable animal species
to provide more land for agricultural purposes
to maintain the diversity of the living environment
- 39. Multiple Choice
A wildfire burned all of the vegetation off a field, and lichens and mosses were the first organisms to grow in the burned spot. Over time, grasses and shrubs grew where the lichens and mosses had been. Which of the following best describes why the grasses and shrubs were able to grow in the area?
The lichens and mosses created a supply of water for complex plants.
The lichens and mosses manufactured the enzymes needed for complex plants.
The lichens and mosses made the field suitable for complex plants
The lichens and mosses were the first step in the food chain for complex plants.
- 40. Multiple Choice
Biodiversity affects the sustainability of an ecosystem by
always increasing competition for limited resources within the ecosystem.
preventing the ecosystem from surviving many changes.
always decreasing competition for limited resources within the ecosystem.
allowing the ecosystem to survive many changes
- 41. Multiple Choice
Kudzu, a plant native to eastern Asia was introduced into America in 1876. In 1935, kudzu was planted along southern roadways to control soil erosion. Adding a foot of vine, a day in the spring and summer, kudzu quickly grew out of control. Why can introducing a new species to an existing ecosystem often be a disaster?
The new species can rapidly evolve into a dangerous subspecies that cannot be destroyed.
The new species can harm native organisms and damage the ecosystem.
The new species can create excess nutrients in the soil that can damage native species
The new species can eventually become extinct.
- 42. Multiple Choice
Using the diagram, which organisms most likely produced soil first?
Shrubs
Grasses
Mosses and Lichens
Hardwood trees
- 43. Multiple Choice
A species that maintains biodiversity by keeping prey populations controlled are called...
Introduced Species
Pioneer Species
Invasive Species
Keystone Species
- 44. Multiple Choice
Based on the graph shown, how can you tell sea otters are a keystone species?
as the sea otter population decreases, biodiversity increases
as sea otter population increases, biodiversity increases
changes in the sea otter population have little effect on biodiversity
the sea otter population decreases due to the presence of urchins
- 45. Multiple Choice
In some forests and parks containing varieties of flowering trees and shrubs, there are signs that read,
"Take nothing but pictures; leave nothing but footprints." These signs help people to remember that
all animals feed directly on flowering shrubs that may be removed by people.
flowering shrubs grow better in state forests and parks than in other locations.
humans can disrupt habitats by removing flowering trees and shrubs.
the removal of flowering trees and shrubs will increase biodiversity
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