NEW
Font size
S
M
L
XL
Worksheets2024 Living Units and Change
Total questions: 15
Worksheet time: 15mins
Name
Class
Date
1.
Dormancy is a change that affects an organism over time on a ___.
a)
daily basis
b)
hourly basis
c)
seasonal basis
d)
long term basis
2.
If a fire destroyed a deciduous forest, what short term effects would the forest ecosystem experience?
a)
Many plants and animals would die or relocate.
b)
There would be no effect on the ecosystem.
c)
All of the plants would die, but the animal population would increase.
d)
The hardwood trees would grow faster and the animals would not be affected.
3.
What process is occurring in the diagram?
a)
Dormancy
b)
Phototropism
c)
Transportation
d)
Hibernation
4.
If a fire destroyed a deciduous forest, what long term effects would the forest ecosystem experience?
a)
Large mammals and snakes would be the dominant animal populations relocating into this ecosystem.
b)
Fast growing plants would be the only plants with the ability to survive in this forest.
c)
The ecosystem would be lifeless because animals would not relocate into this ecosystem.
d)
Pioneer species would begin to grow and the ecosystem would be restored over time.
5.
Why do bears hibernate during the winter months?
a)
Bears bypass winter when their food supply disappears to save energy.
b)
Bears bypass winter to protect themselves from roaming predators.
c)
Bears bypass winter when the rainfall is extremely high and survival would be difficult.
d)
Bears bypass winter when the temperatures are too cold for survival.
6.
What is the figure shown displaying?
a)
Climate change
b)
Eutrophication
c)
Phototropism
d)
Niche
7.
The illustration below shows what an area looked like and changed over a period of 60 years. What process can explain the changes observed during the 60 years?
a)
Natural speciation
b)
Ecological imbalance
c)
Phototropism
d)
Ecological succession
8.
Which two examples undergo dormancy?
a)
Rose bush and Mouse
b)
Squirrel and Human
c)
Rose bush and Oak tree
d)
Oak tree and Black bear
9.
Which would most likely cause a rabbit population to increase?
a)
Normal amounts of food and decreased birth rates
b)
More predators and lack of space
c)
Limited food and water
d)
Excess food, few predators and increased birth rates
10.
Identify examples of phototropism.
a)
A, B, and C only
b)
A, B, and D only
c)
A, B, C and D
d)
B, C, and D only
11.
Which two animals would experience an immediate increase in population if the wolf population became extinct?
a)
Snake and spider
b)
Mouse and grasshopper
c)
Squirrel and mouse
d)
Squirrel and snake
12.
Which picture represents a community?
a)
1
b)
2
c)
3
d)
4
13.
Omar drew the picture below of a community but wants to make it into an ecosystem. What factor could he add?
a)
Pond
b)
Bacteria
c)
Tree fungus
d)
A flower
14.
If a wolf was introduced into this food web, which level would most likely have the largest decline?
a)
Level 4
b)
Level 3
c)
Level 2
d)
Level 1
15.
Which of the following are examples of when secondary succession would occur?
a)
Formation of a new volcanic island and farming
b)
Creation of a new lake and volcanic island
c)
Creation a new lake and a forest fire
d)
Farming and Forest fire
Reset
