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WorksheetsCDB 1 21-22 Test Review
Total questions: 18
Worksheet time: 24mins
If the rabbit population increases, what result would you mostly likely see in the snake population?
The snake population increased because there was less food available to eat.
The snake population increased because there was more food available to eat.
The snake population decreased because there was less food available to eat.
The snake population decreased because there was more food available to eat.
What do these graphs have in common?
Both have the same rate of change.
Both show an increase in population size.
Both show a decrease in population size.
The two graphs have nothing in common.
Which of the following could NOT be a possible outcome if the wild cat population increased?
The lion population would decrease.
The lion population would increase.
The rabbit population would decrease.
The mouse population would decrease.
Based on the graph, what can you infer about the relationships between the populations on the island?
The snakes are predators who prey on both birds and spiders.
The snakes and birds are both predators who prey on spiders.
The snakes are predators who prey on the birds, and the birds are predators who prey on spiders.
The snakes are predators who prey on spiders, and the spiders are predators who prey on birds.
How would you recall the definition of BIOTIC FACTOR?
"-otic" = process = living processes
"bio" = biology = nonliving factors
"bio" = biology = living factors
What are biotic factors?
What is one long-term effect of a volcanic eruption?
animal population decrease due to deaths from inhaling volcanic gases
plant population decrease due to deaths from lava
climate change
forest fire
Which of these human activities is most likely to cause the excessive growth of phytoplankton in the world’s oceans?
The use of chemical fertilizers that are carried by runoff into rivers
The logging of old-growth forests, which results in erosion
The spraying of chemical herbicides that reduce carbon dioxide in the air
The mining of fossil fuels, which requires digging underground tunnels
Which of these activities is most likely to increase the natural biodiversity in an over-fished, coastal area?
Building artificial reefs and increasing fishing activity
Introducing non-native species to fill unoccupied habitats and banning fishing
Building artificial reefs and limiting fishing activity
Eliminating non-native species and encouraging fishing for large predatory fish
DDT is a pesticide that was once widely used to control agricultural pests and mosquitoes. However, this pesticide caused the eggshells of certain birds, including the brown pelican, to become fragile and thin as it passed through the food chain. The adults would then accidentally crush the eggs while trying to incubate them.
What happened to brown pelican populations as a result of DDT use by humans?
The populations increased much more slowly.
The populations decreased over a long period of time as fewer eggs survived long enough to hatch.
The populations remained stable over time.
The populations increased as pelicans laid more eggs so that more offspring would survive.
Based on the weather map, which of the following could be a forecast of the upcoming weather at location B?
Warm front moving in; temperatures and humidity are about to rise.
Cold front moving in; possible thunderstorms followed by decreasing temperatures.
Warm front moving in; possible thunderstorms followed by decreasing temperatures.
Cold front moving in; temperatures and humidity are about to rise.
Major surface currents of the ocean are caused by uneven distributing of heat from the sun through the Earth's atmosphere, which of the following is true of this pattern?
Warm currents originate at the poles.
Warm currents originate near the equator and travel towards the poles.
Cold currents typically travel towards the poles.
All currents in the ocean are the same temperatures.
At what point in the graph are the applied forces balanced?
positi(+)ve acceleration
no acceleration
negati(-)ve acceleration
Which of the following is not a form of acceleration?
Speeding up
Slowing down
Changing directions
Constant speed
A student exerts a force on a wall. What is the net force acting on the wall?
40 N right
40 N left
20 N left
0 N
If the duck had a mass of .80 kg, how would you calculate its acceleration?
net force / mass
mass X acceleration
net force / acceleration
mass / net force
Which word describes an object's resistance to a change in motion and is associated with object's mass?
density
force
inertia
acceleration
A steel ball is at one end of a box that is moving forward as shown. The box suddenly stops. According to Newton’s first law, what happens to the steel ball just after the box stops?
Because of friction, the ball continues rolling forward at the same speed.
Because of friction, the ball rolls forward at an increased speed.
Because of inertia, the ball continues rolling forward at the same speed.
Because of inertia, the ball rolls forward at an increased speed.
A skater pushes off a wall and skates backward a few meters before stopping.
Which statement best describes an action-reaction force pair in this situation?
The wall pushes on the skater when the skater pushes on the wall with equal forces.
The wheels slow down, and the skater stops.
The wall pushes on the skater when the skater pushes on the wall with unequal forces.
The friction of the floor decreases when the wheels roll on the floor.
