WorksheetsUnit 8 Food Webs
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
In the diagram, which of the following organisms would have the greatest impact on the the food web if it were removed?
a)
Oak tree
b)
Hawk
c)
Chipmunk
d)
Rabbit
2.
The trees in a deciduous forest environment are both tall and short. The environment where the trees grow is hit by a severe drought, killing most of the tall trees. The following year, there is a normal amount of rain.
Which of the following will most likely occur?
Which of the following will most likely occur?
a)
The rain reaching the smaller trees decreases.
b)
The smaller trees will increase in height.
c)
The sunlight reaching the smaller trees decreases.
d)
The smaller trees will perish.
3.
Which of the following is NOT needed for a producer to make its own food?
a)
Oxygen
b)
Carbon dioxide
4.
Which food chain correctly identifies the flow of energy?
a)
Polar Bear--->Caribou--->Grasses--->Sun
b)
Lichen--->Lemming--->Artic Fox--->Polar Bear
5.
a)
13 cm
b)
13.4 cm
c)
13.9 cm
d)
14.9 cm
6.
Food provides animals with the materials and energy they need for growth, warmth, and motion. Plants get material for growth mostly from air and water, and obtain energy from sunlight.
Producers provide food to consumers because ―
Producers provide food to consumers because ―
a)
many animals prefer eating plants to eating meat
b)
plants can easily make food from soil and water
c)
animals cannot produce their own food
d)
plants are more abundant in ecosystems
7.
a)
causing a decrease in the number of wildflowers
b)
causing an increase in the number of insects
c)
causing a decrease in the number of armadillos
d)
causing an increase in the number of opossums
8.
a)
It underestimates the complexity of the interactions among these species.
b)
It may contain some inaccurate information about the interactions among these species.
c)
It contains organisms typically found in a particular ecosystem.
d)
The original source of energy for the web is not included.
9.
a)
Plants receiving two hours of light have the greatest increase in height.
b)
Plants need no more than four hours of light to grow the most.
c)
The more light a plant receives, the more the plant’s height increases.
d)
Plants that receive at least six hours of light grow the best.
10.
a)
1 carbon dioxide 2 water 3 oxygen 4 energy
b)
1 water 2 oxygen 3 carbon dioxide 4 energy
c)
1 energy 2 oxygen 3 water 4 carbon dioxide
d)
1 energy 2 water 3 carbon dioxide 4 oxygen
100 %
