NEW
Font size
S
M
L
XL
WorksheetsEcosystems Unit 1
Total questions: 13
Worksheet time: 21mins
Name
Class
Date
1.
Noah visited a park that had many oak trees. Which BEST describes the role of an oak tree in its ecosystem?
a)
Oak trees can live for a long time.
b)
Oak trees have leaves that can change colors.
c)
Oak trees have strong branches and trunks.
d)
Oak trees are a source of food and shelter for animals.
2.
Which of the following is a first-level consumer?
a)
wolf
b)
hawk
c)
carrot
d)
rabbit
3.
Which of the following is a correct food chain?
a)
human->corn->cow
b)
corn->human->cow
c)
corn->cow->human
d)
cow->human->corn
4.
What BEST describes the role of a rabbit in a food chain?
a)
carnivore
b)
decomposer
c)
herbivore
d)
producer
5.
Which of these is the MOST likely effect of cutting down large numbers of trees?
a)
loss of habitat for animals
b)
increase in oxygen in the air
c)
lower pollution levels
d)
decrease in soil erosion
6.
A windstorm knocks down many trees in a national park. Timber companies want to get ride of the fallen trees. How would this MOST likely harm the park ecosystem?
a)
reduces risk of fire
b)
decreases erosion problems
c)
increase the risk of drought
d)
removes available nutrients
7.
As a habitat with a small pond through a long drought, which of these is MOST likely to happen to many of the fish in the pond?
a)
They would adapt to the dry environment.
b)
They would live on other sources of water.
c)
They would move to another habitat.
d)
They would be unable to survive.
8.
Nicole was studying different ecosystems. She compared the number of plants living in a forest to those in a desert. Which factor BEST explains why more plants may survive in a forest?
a)
There is more rain in the forest.
b)
There is more oxygen in the forest.
c)
There is more sunlight in the forest.
d)
There is more competition in the forest.
9.
Deer live in forests for shelter. If the forest was cut down, which situation would MOST likely happen?
a)
The deer would find shelter in a different habitat.
b)
The deer would wait for the forest to grow back.
c)
The deer would move to another forest area.
d)
The deer would change the type of foods they eat.
10.
Which of these is the BEST example of organisms interacting with each other in an ecosystem?
a)
a buffalo drinking water
b)
a bear catching a fish
c)
a rabbit running across the sand
d)
a pig rolling in the mud
11.
Grass > Grasshopper > Fish > Hawk
What would most likely happen first if the producer of this food chain were to decrease?
What would most likely happen first if the producer of this food chain were to decrease?
a)
The fish population would increase
b)
The grass population would increase
c)
The number of hawks would decrease
d)
The number of grasshoppers would decrease
12.
Reef, Pond, Marsh, Prairie
What do all of these ecosystems have in common?
What do all of these ecosystems have in common?
a)
fish
b)
sunlight
c)
marsh
d)
tall grasses
13.
Grasshopper Sun Grass
Which shows how energy flows through this food chain?
Which shows how energy flows through this food chain?
a)
Grass > Grasshopper > Sun
b)
Grasshopper > Grass > Sun
c)
Sun > Grass > Grasshopper
d)
Sun > Grasshopper > Grass
Reset
