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WorksheetsScience USA
Total questions: 25
Worksheet time: 2hrs 5mins
Name
Class
Date
1.
Look at the picture of the graph. Based on information in the graph, which sentence is true?
a)
Ecoregion Q has a lot of animals that eat trees
b)
Ecoregion R has a variety of biotic factors that support the abiotic factors
c)
Ecoregion S has poor soil quality and extremely high precipitation
d)
Ecoregion T has the abiotic factors to support the greatest variety of plant life
2.
Which ECOREGION in the graph is most likely to support the least amount of different varieties of organisms?
a)
Q
b)
R
c)
S
d)
T
3.
Organic compounds can be distinguished from inorganic compounds because organic compounds always ....
a)
contain carbon and certain other elements
b)
have higher boiling and melting points
c)
make up the largest molecules that exist
d)
will conduct electricity and be magnetic
4.
As species disappear from a prairie ecosystem, their disappearance results in ....
a)
likelihood of prairie wildfires breaking out
b)
numbers of species in nearby ecosystems
c)
reduction in sustainability of the prairie ecosystem
d)
numbers of offspring in remaining species
5.
The Brazilian rain forest is an area with significant biodiversity. As the rain forest is replaced with agricultural land, it is reasonable to predict a reduction in—
a)
consumption of solar energy
b)
sustainability over time
c)
precipitation levels
d)
average daily temperature
6.
Which of the following compounds is ORGANIC?
a)
CaH10P4K3O4
b)
NaCl
c)
C6H12O6
d)
Fe2O3
7.
Which of the following biomes supports the greatest variety of organisms—
a)
A
b)
B
c)
C
d)
D
8.
The ocean ecosystem has a high sustainability because of -
a)
strong, persistent currents
b)
predator/prey relationships
c)
green plants growing on the bottom
d)
the large variety of different organisms
9.
Which of the paired statements could be used to distinguish the insects using a dichotomous key?
a)
Has 6 legs
Has 8 legs
Has 8 legs
b)
Large hind legs Small hind legs
c)
2 pairs of spots on wing cover
3 pairs of spots on wing cover
3 pairs of spots on wing cover
d)
Antennae absent Antennae present
10.
Which one of the locations indicated is most likely to have the greatest biodiversity?
Location ....
Location ....
a)
Q
b)
R
c)
S
d)
T
11.
Which one of the locations indicated is most likely to have the second greatest biodiversity and ability to sustain the ecosystems located within the biome-
a)
Q
b)
R
c)
S
d)
T
12.
Why does biodiversity contribute to a habitat’s sustainability?
a)
The more plants and animals in a habitat, the greater the biomass, which is how habitats store energy
b)
The greater the number of species, the more competition there is for food between predators, which sustains their populations
c)
Changing conditions that harm one species leave other species to survive and perhaps even thrive
d)
Landforms change shape less frequently when there is a greater number of species using the land
13.
Which climograph represents the biome that supports the smallest variety of organisms?
a)
A
b)
B
c)
C
d)
D
14.
Leaf Q is correctly identified as -
a)
eastern white pine
b)
balsam poplar
c)
sweet gum
d)
ginkgo
15.
Leaf R is correctly identified as -
a)
eastern white pine
b)
balsam poplar
c)
sweet gum
d)
ginkgo
16.
Leaf S is correctly identified as -
a)
eastern white pine
b)
balsam poplar
c)
sweet gum
d)
ginkgo
17.
Leaf T is correctly identified as -
a)
eastern white pine
b)
balsam poplar
c)
sweet gum
d)
ginkgo
18.
Where are you most likely to find the greatest variety and numbers of animal life?
a)
on a newly mowed lawn
b)
close to a pond with rocks, water, and several types of plants
c)
in an area with nutrient poor soil
d)
next to a paved surface
19.
Which conclusion is best supported by the information provided in the Biome S and Biome T tables–
a)
Both biomes receive the largest amount of precipitation in the warmer months
b)
Biome T receives more solar radiation than Biome S
c)
Biome T is less likely to have a wide variety of plants due to the climate
d)
Biome S is most likely a desert, and Biome T is most likely grassland.
20.
Which biome is likely to have the greatest variety of plants and animals—
a)
Coniferous Forest (Taiga)
b)
Desert
c)
Temperate forest
d)
Tropical rain forest
21.
Biodiversity contributes to the sustainability of an ecosystem because -
a)
all the organisms in the ecosystem have genetic material
b)
there is an increased chance for organisms to survive changes
c)
organisms are allowed to respond to internal and external stimuli
d)
the flow of energy in an ecosystem remains constant
22.
Which of the following best completes the concept map?
a)
Coniferous forest (Taiga)
b)
Desert
c)
Tropical Rain Forest
d)
Grassland
23.
Which of the following would be the best choice to complete the concept map above at Location X?
a)
Temperature
b)
Bacteria
c)
Rocks
d)
Air
24.
Which of the following is most likely to have a positive effect on biodiversity?
a)
Increasing people’s awareness of pollution
b)
Replanting trees and other plants
c)
Recycling glass, aluminum cans, and plastic
d)
Pouring oil onto the ground
25.
All of the following contribute to the decrease of biodiversity except?
hint: Which one creates an INCREASE?
hint: Which one creates an INCREASE?
a)
habitat destruction
b)
over fishing
c)
conservation of natural resources
d)
oil spills
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