Forces that Affect Energy Transfer
Populations and Animal Communication
Ecological Relationships
Ecosystem Energy Transfers
Biomes and Biotic/Abiotic Factors
100
Which of the following objects would be affected by air resistance?
A: child sliding backward down an icy hill
B: falling paper cup
C: car driving down the highway
D: all would be affected
E: none would be affected
D: all would be affected
100
In the food chain below, what would happen to the population of snakes in the ecosystem if the grass were destroyed? 
A: The snake population would decrease.
B: The snake population would stay the same.
A: The snake population would decrease.
100
The image shows a ladybug and two honeybees on the same flower.
Which statement correctly explains the type of ecological interaction among the organisms in the image?
A: Parasitism; the insects benefit from the flower, and the flower acts as the host to protect the insects.
B: Mutualism; the bees receive food from the flower, and the flower is pollinated by the bees.
C: Predation; the bees eat pollen and nectar from the flower.
D: Commensalism; the honeybees feed on flower nectar, and the ladybug protects them from predators.
B: Mutualism; the bees receive food from the flower, and the flower is pollinated by the bees.
100
Which biome is characterized by cold temperatures, little precipitation, and animals such as wolves and caribou?
A: Grassland
B: Tundra
C: Desert
D: Rainforest
B: Tundra
100
Which biome is characterized by cold temperatures, little precipitation, and animals such as wolves and caribou?
A: Grassland
B: Tundra
C: Desert
D: Rainforest
B: Tundra
200
The force of friction on a moving object changes some of its kinetic energy into __________ energy.
A: electric
B: potential
C: solar
D: thermal
D: thermal
200
Examine the grassland food web.
A new herd of zebra enter this grassland ecosystem. Zebra feed solely on grasses and are eaten by leopards. What effect will the introduction of these zebra have on the grassland ecosystem?
A: The number of leopards will decrease, and the number of locusts and impalas will increase.
B: The number of scorpions and leopards will increase, and the number of impalas will decrease.
C: The number of impalas and locusts will decrease, and the number of leopards will increase.
D: The number of baboons will increase, and the number of scorpions and locusts will increase.
C: The number of impalas and locusts will decrease, and the number of leopards will increase.
200
Oxpecker birds are named after their feeding habits. They sit on a large mammal’s back and peck their beaks into the hair to eat ticks and other larvae attached to the mammal’s skin. Since an oxpecker’s food of choice is blood, they also feed directly on the mammal’s blood using their strong beaks. 
Which combination of symbiotic relationships does the oxpecker have with large mammals?
A: commensalism and mutualism
B: commensalism and parasitism
C: parasitism and mutualism
D: commensalism, mutualism, and parasitism
C: parasitism and mutualism
200
In a certain biome, wildflowers and herbs are some of the most common plants. Bison and prairie dogs consume the wildflowers and herbs. Coyotes and eagles hunt the prairie dogs. Which biome is most likely being described?
A: coniferous forest
B: temperate grassland
C: tropical rain forest
D: Arctic tundra
B: temperate grassland
200
In a certain biome, wildflowers and herbs are some of the most common plants. Bison and prairie dogs consume the wildflowers and herbs. Coyotes and eagles hunt the prairie dogs. Which biome is most likely being described?
A: coniferous forest
B: temperate grassland
C: tropical rain forest
D: Arctic tundra
B: temperate grassland
300
Two children are rolling a ball across the floor to each other. Due to friction, which of the following will reduce the amount of kinetic energy in the rolling ball the most?
A: Rolling the ball across hardwood floor.
B: Rolling the ball across carpet.
C: Rolling the ball across a tile floor.
B: Rolling the ball across carpet.
300
A scientist selects a small container and a large container and places two male and two female insects in each container with the same amount of nutrients. The number of offspring, referred to as pupa, is collected over the course of the experiment for several hours, as shown in the graph.
What can be concluded from the experiment?
A: The population of insects in the small container is limited due to access to potential mates.
B: The population of insects in the large container is limited due to the spread of a disease.
C: The population of insects grows quicker when there is less competition for space.
D: The population of insects grows quicker when there is less competition for food.
C: The population of insects grows quicker when there is less competition for space.
300
The image shows the relationships between an orchid, a dodder, and their host plants.
Which table correctly describes the relationship in both ecological interactions?
A
B
C
D
D:
300
Some elements in a coniferous forest include snow, trees, deer, and birds. Which of the following are biotic? (Choose 3.)
A: spruce trees
B: snow
C: cold temperatures
D: deer
E: birds
A: spruce trees
D: deer
E: birds
300
Some elements in a coniferous forest include snow, trees, deer, and birds. Which of the following are biotic? (Choose 3.)
A: spruce trees
B: snow
C: cold temperatures
D: deer
E: birds
A: spruce trees
D: deer
E: birds
400
How is air resistance related to friction?
A: Falling objects are the only ones affected by air resistance, but there is no friction.
B: Moving objects move past air molecules, rubbing against them, which creates friction.
C: Air resistance causes objects to be heavier, increasing friction.
D: Air resistance and friction are not related.
B: Moving objects move past air molecules, rubbing against them, which creates friction.
400
Over time, a rabbit population reaches its carrying capacity.
Which factor would cause the carrying capacity to decrease?
A: an increase in the amount of shelter
B: an increase in the amount of water available per rabbit
C: a decrease in the number of predators
D: a decrease in the amount of food available per rabbit
D: a decrease in the amount of food available per rabbit
400
The image shows a goby fish and a snapping shrimp that live together in a burrow.
The shrimp digs and cleans the burrow. Outside of the burrow, the shrimp is almost blind and keeps its antennae on the goby fish. When the goby fish spots predators, it quickly moves into the burrow, and the shrimp follows.
What can be concluded from this relationship between the goby fish and shrimp?
A: Both species benefit from the activity of the other.
B: Both species compete for the same living space.
C: Only the fish is harmed from the relationship due to the shrimp’s enlarged snapping claw.
D: Only the shrimp benefits from the relationship as it is warned about predators.
A: Both species benefit from the activity of the other.
400
In the desert biome, many animals are active at night and rest during the day.
Which statement best explains this pattern of behavior?
A: The animals can find more food at night.
B: The animals conserve water by being active during the day.
C: The animals can avoid the heat of the day by being active at night instead.
D: The animals can hide more easily when it is dark.
C: The animals can avoid the heat of the day by being active at night instead.
400
The table lists climate data for a Tundra.
Based on the data, what can be inferred about the biotic factors of this region?
A: The region has large populations of birds in the winter when they migrate.
B: The region supports the growth of tropical flowers.
C: The region does not have mammals as they cannot adapt to the climate.
D: The region does not support the growth of trees as the land remains frozen most of the year.
D: The region does not support the growth of trees as the land remains frozen most of the year.
500
A material that reduces the flow of heat by conduction, convection, or radiation is a(n) ___________.
A: conductor
B: radiator
C: insulator
D: metal
C: insulator
500
In the fall, adult salmon migrate from the ocean to rivers to lay eggs. Salmon eggs are at an increased risk for deadly fungal infections if the water temperature reaches 12°C. The graph shows the average water temperature in the fall for a river where salmon lay eggs.
Based on the graph, how will the change in the river’s water temperature most likely affect the salmon population?
A: The number of salmon that remain in the ocean will increase over the years.
B: The number of salmon that are preyed upon in the river will increase over the years.
C: The number of salmon eggs that successfully hatch in the river will decrease over the years.
D: The number of salmon eggs that gain a fungal infection will decrease over the years.
C: The number of salmon eggs that successfully hatch in the river will decrease over the years.
500
Ticks carry bacteria that cause Lyme disease. Ticks do not get Lyme disease, but they may transfer bacteria to humans. Which of the following statements best describes the relationships among the bacteria, ticks, and humans?
A: the relationship between bacteria and ticks is competition, and the relationship between ticks and humans is predatory.
B: the relationship between bacteria and ticks is mutualism, and the relationship between ticks and humans is commensalism.
C: The relationship between bacteria and ticks is predation, and the relationship between ticks and humans is mutualism.
D: the relationship between bacteria and ticks is commensalism, and the relationship between ticks and humans is parasitism.
D: the relationship between bacteria and ticks is commensalism, and the relationship between ticks and humans is parasitism.
500
In the Taiga, bears are known to hibernate in the winter. Which statement predicts why hibernation is a useful adaptation for survival?
A: Larger animals hunt bears in the winter.
B: Food becomes scarce during the winter.
C: Migration causes a struggle for available space.
D: Fewer leaves make it easier for prey to see the bears.
B: Food becomes scarce during the winter.
500
How is a tundra biome similar to a desert biome?
A: Both biomes are characterized by very little precipitation.
B: Both biomes lack plants or animals.
C: Both biomes are hot during the day and cold at night.
D: Both biomes have dry, rocky soils.
A: Both biomes are characterized by very little precipitation.