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Worksheets1st Quarter Review
Total questions: 39
Worksheet time: 2hrs 30mins
Name
Class
Date
1.
A possible explanation to a problem that has not yet been tested.
a)
data
b)
theory
c)
hypothesis
d)
fact
2.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.
a)
experimental group
b)
control group
c)
data
d)
variables
3.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
4.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
5.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...
a)
The type of plant
b)
The amount of sunlight
c)
The type of music
d)
The type of liquid
6.
A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?
a)
heart rate
b)
type of exercise
c)
amount of exercise
d)
time of day exercise occurs
7.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?
a)
Type of plant, amount of music, and sunlight
b)
Water, apple juice, milk
c)
Plant growth
8.
The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Inorganic nutrients
9.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
10.
What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?
a)
food web
b)
an ecosystem
c)
food chain
d)
a population
11.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
12.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
13.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
14.
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
a)
10
b)
1
c)
100
d)
2
15.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
16.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
17.
Where an organism lives
a)
habitat
b)
niche
c)
heterotrogh
d)
biosphere
18.
Interacting populations in a particular area
a)
community
b)
population
c)
cell
d)
tissue
19.
How many levels this food chain has?
a)
10
b)
5
c)
4
d)
6
20.
Process which changes nitrogen in the soil to nitrogen in the atmsphere
a)
nitrogen fixing bacteria in the soil
b)
denitrifying bacteria
c)
nitrification
d)
absorption
21.
In what zone does approximately 90% of all ocean life live?
a)
sunlight
b)
twilight
c)
midnight
22.
Animals that can use their bodies to make light are called _______________.
a)
magic
b)
shiny
c)
amazing
d)
bioluminescent
23.
Which characteristics are biomes not classified by?
a)
Climate
b)
Plants
c)
Soil quality
d)
Precipitation
24.
The main difference between the Taiga and Tundra is (choose all that apply):
a)
Conifers (Pine Trees)
b)
Temperture
c)
Grizzly Bears
d)
All of these
25.
The eastern U.S. is comprised of mostly which biome?
a)
Desert
b)
Temperate grassland
c)
Temperate deciduous forest
d)
Taiga
26.
Complete the levels of organization in ecosystems:
Populations > Communities > ? Biomes
Populations > Communities > ? Biomes
a)
Ecology
b)
Ecosystems
c)
Organisms
d)
Biosphere
27.
A biome is the same thing as an ecosystem.
a)
True
b)
False
28.
All biomes are classified by:
a)
Temperature
b)
Climate
c)
Geographic location
d)
Latitude and longitude
29.
The temperate deciduous forest is unique in that it:
a)
Has a large number of plants and animals
b)
Has mild tempertures
c)
Experiences 4 seasons a year
d)
All of these
30.
Which of the following best describes an ecosystem?
a)
all the living organisms in an area and their physical surroundings
b)
a region with a distinct climate
c)
all the living organisms of the same species throughout the world
d)
all the living organisms in an area
31.
The energy pyramid below shows a possible amount of energy, in kilocalories, available in the organisms at each trophic level in an ecosystem. According to the law of conservation of energy, energy can neither be created nor destroyed. If this is true, why is there less energy in the top of the energy pyramid than there is in the bottom of the energy pyramid?
a)
Energy is lost between each trophic level as heat.
b)
The law of conservation of energy does not apply to ecosystems.
c)
Organisms in the top of the energy pyramid use up energy the fastest.
d)
The extra energy in the bottom is slower to reach the top.
32.
Which of the following interactions is an example of symbiosis?
a)
an insect acts as a pollinator for a plant species
b)
a population of hummingbirds migrates during the summer
c)
a tropical bird performs a courtship dance for a mate
d)
a mother bear feeds and protects her cubs
33.
The diagram below depicts the water cycle. Which process is represented by the number 2?
a)
precipitation
b)
evaporation
c)
surface runoff
d)
condensation
34.
The bodies of all living things are based on carbon. Which of the following is the primary source of carbon in living things?
a)
carbon compounds stored in fossil fuels
b)
carbon compounds in the soil
c)
dissolved carbon dioxide in the biosphere
d)
carbon dioxide in the atmosphere
35.
An increase in the atmospheric levels of carbon dioxide (CO2) is the biggest contributor to which of the following?
a)
El Nino
b)
global warming
c)
wind storms
d)
ozone depletion
36.
A __________ is a group of organisms that can reproduce fertile offspring. Failure to reproduce fertile offspring will cause __________ of the group.
a)
genus, evolution
b)
species, extinction
c)
phylum, extinction
d)
species, evolution
37.
The graph below shows population data for two species. What can be said about the relationship between species 1 and species 2?
a)
When the population of species 1 increases, the population of species 2 decreases.
b)
The population of species 1 and species 2 stay the same over the time period shown.
c)
The population of species 1 is not influenced by the population of species 2.
d)
When the population of species 1 increases, the population of species 2 increases.
38.
78% of Earth's atmosphere is nitrogen gas. All living things need nitrogen as a part of DNA and RNA. Yet you and I, and other living things, cannot use the nitrogen in our atmosphere directly. One type of organism is responsible for "fixing" nitrogen or helping to put it in a form so other living things can use it. That organism is
a)
bacteria.
b)
fungi.
c)
plants.
d)
viruses.
39.
In the organization of living things, a ______________ would include the largest number of individuals.
a)
community
b)
population
c)
ecosystem
d)
species
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