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Worksheets7th Grade Final 2017
Total questions: 139
Worksheet time: 1hrs 10mins
Name
Class
Date
1.
Very small organisms
a)
microorganisms
b)
virus
c)
bacteria
d)
parasite
2.
Classification if organisms into 5 categories
a)
binary fission
b)
host cell
c)
kingdom
d)
microorganism
3.
A small collection of genetic material enclosed in a protein shell
a)
virus
b)
bacteria
c)
archaea
d)
parasite
4.
single celled organisms reproduce by...
a)
stimulus
b)
fertilization
c)
meiosis
d)
binary fission
5.
The simplest kind of life found on earth
a)
algae
b)
bacteria
c)
lichen
d)
spore
6.
A single celled organism that can survive in the largest range of environments
a)
stimulus
b)
bacteria
c)
archaea
d)
plankton
7.
Bacteria that transforms energy from the sunlight into energy that can be used by other cells
a)
decomposer
b)
producer
c)
consumer
d)
heterotroph
8.
Get energy by breaking down materials in dead or decaying organisms
a)
decomposer
b)
protozoa
c)
bacteria
d)
binary fission
9.
live in very close relationships either inside or on the surface of other organisms
a)
parasite
b)
archaea
c)
microorganisms
d)
virus
10.
the cells that viruses infect in order to make copies
a)
host cells
b)
plankton
c)
protozoa
d)
microogranisms
11.
applies to both multicellular protists and single-celled protists that use sunlight as an energy source
a)
algae
b)
archaea
c)
plankton
d)
protozoa
12.
all organisms that drift in water
a)
plankton
b)
protozoa
c)
algae
d)
bacteria
13.
protists that eat other organisms, or decaying parts of other organisms
a)
protozoa
b)
plankton
c)
bacteria
d)
archaea
14.
group of cells that work together
a)
tissue
b)
cell
c)
organ
d)
organ system
15.
a structure is made up of different tissues
a)
tissue
b)
cell
c)
organ
d)
organ system
16.
the genetic material of two parents comes together and the resulting offspring have genetic material from both
a)
sexual reproduction
b)
meiosis
c)
fertilization
d)
binary fission
17.
a special form of cell division that produces sperm cells in a male and egg cells in female
a)
sexual reproduction
b)
meiosis
c)
fertilization
d)
binary fission
18.
when the sperm cell from the male parent combines with the egg cell from the female parent
a)
sexual reproduction
b)
meiosis
c)
fertilization
d)
binary fission
19.
plants capture energy from sunlight and convert it to chemical energy through the process of
a)
photosynthesis
b)
cellular respiration
c)
fermentation
d)
phototation
20.
the process by which a cell uses oxygen to break down sugars to release the energy they hold
a)
photosynthesis
b)
cellular respiration
c)
fermentation
d)
phototation
21.
another name for plant, "self-feeder"
a)
autotroph
b)
producer
c)
heterotroph
d)
consumer
22.
an organism that needs to get energy from another organism
a)
autotroph
b)
producer
c)
heterotroph
d)
consumer
23.
an organism that feeds on, or consumes, other organisms
a)
autotroph
b)
producer
c)
heterotroph
d)
consumer
24.
is something that produces a response from an organism
a)
stimulus
b)
reaction
c)
cellular respiration
d)
photosynthesis
25.
a chemical substance produced in one part of an organism and travels to a different part where it produces a reaction
a)
hormone
b)
auxin
c)
lichen
d)
hyphae
26.
any observable response to a stimulus
a)
behavior
b)
stimulus
c)
predator
d)
prey
27.
an animal that hunts other animals for food
a)
behavior
b)
stimulus
c)
predator
d)
prey
28.
an animal that is hunted by another animal as a source of food
a)
behavior
b)
stimulus
c)
predator
d)
prey
29.
the movement of animals to a different region in response to changes in the environment
a)
migration
b)
hibernation
c)
lichen
d)
stimulus
30.
a sleeplike state that lasts for an extended time period
a)
migration
b)
hibernation
c)
lichen
d)
stimulus
31.
a typical fungus is made up of a reproductive body and network of cells that form threadlike structures
a)
hyphae
b)
spore
c)
lichen
d)
archaea
32.
a single reproductive cell that is capable of growing into a new organism
a)
hyphae
b)
spore
c)
lichen
d)
archaea
33.
some fungi live together with single-celled algae
a)
hyphae
b)
spore
c)
lichen
d)
archaea
34.
the scientific study of how organisms interact with their environment and all the other organisms that live in that environment
a)
ecology
b)
ecosystem
c)
energy pyramid
d)
trophic level
35.
describes a particular environment and all the living things that are supported by it
a)
ecology
b)
ecosystem
c)
energy pyramid
d)
trophic level
36.
living parts
a)
biotic factor
b)
abiotic factor
37.
nonliving parts
a)
biotic factor
b)
abiotic factor
38.
a series of events that happens over and over again
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
39.
the movement of water through the environment
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
40.
carbon moves through Earth's ecosystems in a cycle referred to as
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
41.
nitrogen is another element that cycles through Earth in the
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
42.
nitrogen is another element that cycles through Earth in the
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
43.
ammonification, assimilation, dentrification, nitrogen fixation, nitrification
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
44.
combustion, consumption, decompostion, diffusion, metabolism, photosynthesis
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
45.
accumulation, condensation, evaportation, inflitration, plant uptake, precipitation, runoff, transpiration
a)
cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
46.
an organism that captures energy and stores it in food as chemical energy
a)
producer
b)
consumer
c)
decomposer
d)
deteriorate
47.
an organisms that get their energy by eating, or consuming, other organisms
a)
producer
b)
consumer
c)
decomposer
d)
deteriorate
48.
are organisms that break down dead plant and animal matter into simpler compounds
a)
producer
b)
consumer
c)
decomposer
d)
deteriorate
49.
describes the feeding relationship between a producer and a single chain of consumers in an ecosystem
a)
food web
b)
food chain
c)
energy pyramid
50.
a model of the feeding relationships between many different consumers and producers in the ecosystem
a)
food web
b)
food chain
c)
energy pyramid
51.
a model that shows the amount of energy available at each feeding level of an ecosystem
a)
food web
b)
food chain
c)
energy pyramid
52.
the way of life of a a species, its role in an ecological community
a)
biome
b)
biosphere
c)
niche
d)
community
53.
includes all the living and nonliving features of an environment
a)
biome
b)
biosphere
c)
niche
d)
community
54.
all populations in an ecosystem
a)
population
b)
biosphere
c)
niche
d)
community
55.
all organisms of a certain kind within a defined region
a)
population
b)
biosphere
c)
niche
d)
community
56.
every place on Earth that can support life
a)
population
b)
biosphere
c)
niche
d)
community
57.
trees with needlelike leaves that produce food all year long
a)
coniferous
b)
deciduous
c)
estuary
d)
biome
58.
trees drop their leaves as winter approaches and grow new leaves in spring
a)
coniferous
b)
deciduous
c)
estuary
d)
biome
59.
the lower end of a river that feeds into the ocean, where fresh water and salt water mix
a)
coniferous
b)
deciduous
c)
estuary
d)
biome
60.
scientists group living things according to their shared characteristics
a)
species
b)
population
c)
habitat
d)
niche
61.
a group of organisms of the same species that live in a particular area
a)
species
b)
population
c)
habitat
d)
niche
62.
the physical location where these plants and animals live
a)
species
b)
community
c)
habitat
d)
niche
63.
each of these organisms has a role to play in the habitat
a)
species
b)
population
c)
habitat
d)
niche
64.
a group of populations that live in a particular area and interact with one another
a)
species
b)
community
c)
habitat
d)
niche
65.
the struggle between individuals or different populations for limited resources
a)
competition
b)
cooperation
c)
symbiosis
d)
mutualism
66.
an interaction in which organisms work in a way that benefits them all
a)
competition
b)
cooperation
c)
symbiosis
d)
mutualism
67.
the relationship between individuals of two different species who live together in a close relationship
a)
commensalism
b)
cooperation
c)
symbiosis
d)
mutualism
68.
an interaction between two species that benefits both
a)
commensalism
b)
parasitism
c)
symbiosis
d)
mutualism
69.
a relationship between two species in which one species benefits while the other is not affected
a)
commensalism
b)
parasitism
c)
symbiosis
d)
mutualism
70.
is a relationship between two species in which one species benefits while the species depends on is harmed
a)
commensalism
b)
parasitism
c)
symbiosis
d)
mutualism
71.
any factor or condition that limits the growth of a population in an ecosystem
a)
limiting factor
b)
carrying capacity
c)
succession
d)
pioneer species
72.
when a population reaches a state where it can no longer grow
a)
limiting factor
b)
carrying capacity
c)
succession
d)
pioneer species
73.
is the gradual change in an ecosystem in which one biological community is replaced by another
a)
limiting factor
b)
carrying capacity
c)
succession
d)
pioneer species
74.
the first living things to move into a barren environment
a)
limiting factor
b)
carrying capacity
c)
succession
d)
pioneer species
75.
the measure of the number of people in a given area
a)
population density
b)
biodiversity
c)
pollution
d)
limiting factor
76.
the number and variety of life forms within an ecosystem
a)
population density
b)
biodiversity
c)
pollution
d)
limiting factor
77.
the addition of harmful substances to the environment
a)
population density
b)
biodiversity
c)
pollution
d)
limiting factor
78.
the remains of organisms preserved in the Earth
a)
fossil
b)
unicellular organism
c)
multicellular organism
d)
ancestor
79.
are organisms made up of a single cell
a)
fossil
b)
unicellular organism
c)
multicellular organism
d)
ancestor
80.
are living things made up of many cells
a)
gene
b)
unicellular organism
c)
multicellular organism
d)
ancestor
81.
an early form of an organism from which later forms descend
a)
gene
b)
adaption
c)
selection
d)
ancestor
82.
a segment of DNA that relates to a specific trait or function of an organism
a)
gene
b)
adaptation
c)
selection
d)
ancestor
83.
refers to the process through which species change over time
a)
evolution
b)
adaptation
c)
selection
d)
natural selection
84.
any inherited trait that gives an organism an advantage in its particular environment
a)
evolution
b)
adaptation
c)
selection
d)
natural selection
85.
the evolution of new species from an existing species
a)
speciation
b)
adaptation
c)
selection
d)
natural selection
86.
a process in which environmental or genetic influences determine which types of organism thrive better than others, regarded as a factor in evolution
a)
speciation
b)
adaptation
c)
selection
d)
natural selection
87.
The process in nature by which, according to Darwin's theory of evolution, organisms that are better adapted to their environment tend to survive longer and transmit more of their genetic characteristics to succeeding generations than do those that are less well adapted.
a)
speciation
b)
adaptation
c)
selection
d)
natural selection
88.
the process of arranging organisms into groups based on similarities
a)
classification
b)
taxonomy
c)
binomial nomenclature
d)
dichotomous key
89.
the science of naming and classifying organisms
a)
classification
b)
taxonomy
c)
binomial nomenclature
d)
dichotomous key
90.
the system for naiming species developed by Linnaeus
a)
genus
b)
cladogram
c)
binomial nomenclature
d)
dichotomous key
91.
is a group of species that have similar characteristics
a)
genus
b)
cladogram
c)
binomial nomenclature
d)
dichotomous key
92.
asks a series of questions that can be answered in only two ways
a)
domain
b)
cladogram
c)
binomial nomenclature
d)
dichotomous key
93.
a branching diagram showing the cladistic relationship between a number of species.
a)
domain
b)
cladogram
c)
binomial nomenclature
d)
dichotomous key
94.
scientists have arranged kingdoms into larger groups
a)
domain
b)
cladogram
c)
binomial nomenclature
d)
dichotomous key
95.
organisms can be classified into 7 levels
a)
kindgom, phylum, class, order, family, genus, species
b)
species, genus, family, order, class, phylum, kingdom
c)
class, family, genus, kingdom, order, phylum, species
d)
species, phylum, order, kingdom, genus, family, class
96.
Species have originated in the location naturally and without human involvement.
a)
native
b)
non-native
c)
non-native invasive
d)
invasive
97.
Species have been introduced to an ecosystem accidentally or intentionally. They do not disrupt the natural flow of the ecosystem in which they now live and often offer biodiversity.
a)
native
b)
non-native
c)
non-native invasive
d)
invasive
98.
Species have been introduced to an ecosystem either accidentally or intentionally by humans or other means (ships, pet trade, ornamental plants.) They develop widespread populations because they lack natural predators and outcompete for resources. As a result, they disrupt the ecosystem, displace native species, affect the economy and even human health.
a)
native
b)
non-native
c)
non-native invasive
d)
invasive
99.
one species directly and aggressively interferes with the ability of another to forage, reproduce, and survive. A species will physically exclude the other species from obtaining a resource even if that resource is abundant.
a)
interference
b)
exploitative
c)
intraspecific
d)
interspecific
100.
a subtle form of competition in which organisms interact indirectly by consuming the same scarce resources and making them unavailable to another.
a)
interference
b)
exploitative
c)
intraspecific
d)
interspecific
101.
individuals of two separate species compete for the same a resource in the same area
a)
interference
b)
exploitative
c)
intraspecific
d)
interspecific
102.
members of the same species compete for the same resource in the same area
a)
interference
b)
exploitative
c)
intraspecific
d)
interspecific
103.
What skill is a scientist using when she listens to the sound that whales make?
a)
making hypothesis
b)
making observations
c)
interpreting data
d)
drawing conclusions
104.
Which of the following is NOT a rule when writing a hypothesis?
a)
It is testable
b)
It is a prediction
c)
It is an if/then statement
d)
It should restate the questions
105.
An experiment that tests only one factor at a time by using a comparison of a control group and an experimental group is?
a)
a dependent variable
b)
an independent variable
c)
a theory
d)
a controlled experiment
106.
Which of the following hypotheses is written correctly?
a)
If a tennis ball is frozen, it won't bounce as high as one that is frozen.
b)
If I freeze a teniis ball, then it will not bounce as high because it is not as elastic.
c)
If I heat up a tennis ball it will bounce high.
d)
Frozen tennis balls will not bounce as high.
107.
The process of obtaining information by using the sense is called a/an
a)
scientific method
b)
conclusion
c)
inquiry
d)
observation
108.
A series of steps designed to help you solve problems and answer questions
a)
observation
b)
scientific method
c)
experiment
d)
hypothesis
109.
In an experiment, the onvariable that is change is called the
a)
independent
b)
dependent
c)
experimental
d)
control
110.
In an experiment the factor that we measure is called the
a)
controlled
b)
independent
c)
conclusion
d)
dependent
111.
A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
a)
the gender of the alligator
b)
the temperature
c)
the male alligator
d)
the incubator
112.
A scientist hypothesizes the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The dependent variable is
a)
the gender of the alligator
b)
the temperature
c)
the male alligator
d)
the incubator
113.
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the independent variable is
a)
the water
b)
the number of plants in the water
c)
the temperature of the water
d)
the amount of salt in the water
114.
A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the dependent variable is
a)
the water
b)
the number of plants in the water
c)
the temperature of the water
d)
the amount of salt in the water
115.
All the things in an experiment that must be the same to make it fair are called
a)
controlled variables or constants
b)
dependent variables
c)
controlled experiments
d)
independent variables
116.
In science, an educated guess is called a/an
a)
observation
b)
conclusion
c)
question
d)
hypothesis
117.
When you decide whether or not the data supports the original hypothesis, you are
a)
drawing conclusions
b)
asking questions
c)
forming a hypothesis
d)
making observations
118.
When a scientists shares her findings with other scientists she is
a)
experimenting
b)
analyzing data
c)
communicating results
d)
making a hypothesis
119.
In which step of the scientific method do we want to use graphs
a)
analyze data
b)
communicate results
c)
asking questions
d)
making a hypothesis
120.
A scientist who wants to study the effect of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 5mg of fertilizer each day, and Plant C gets 10mg of fertilizer each day. Which plant is the control group?
a)
Plant A
b)
Plant C
c)
all of them
d)
Plant B
121.
Which group is not a microsccopic kingdom?
a)
fungi
b)
bacteria
c)
archaea
d)
protists
122.
What happens in binary fission?
a)
DNA is combined into one cell.
b)
The daughter cells differ from the parent cell.
c)
MAterial from one cell is broken into two cells.
d)
One cell divides into four exact cells.
123.
Which is a characteristic of a virus?
a)
obtains energy from sunlight
b)
responds to light and temperature
c)
doesn't contain DNA
d)
reproduces inly within other cells
124.
Which is the simplest type of organisms on Earth?
a)
protists
b)
bacteria
c)
viruses
d)
parasites
125.
Which statement about bacteria is NOT true?
a)
Bacteria reproduce using binary fission.
b)
Bacteria do not have a nucleus
c)
bacteria do not contain genetic material
d)
Bacteria are either rod-, cone-, or spiral- shaped.
126.
Archaea that can only survive in extreme temperatures are the
a)
methanogens
b)
halophiles
c)
thermophiles
d)
bacteria
127.
A weakened viral or bacterial disease that is injected into the body is
a)
a filter
b)
a diatom
c)
a vaccine
d)
a bacteriophage
128.
Which group of protists absorbs food from their environment?
a)
diatoms
b)
molds
c)
protozoa
d)
plankton
129.
Which obtains energy by feeding on other organisms?
a)
amoeba
b)
algae
c)
phytoplankton
d)
mushroom
130.
Which of the following is NOT a characteristic that ALL living things share?
a)
cellular organization
b)
reproduce sexually
c)
grow
d)
respond to their environemnt
131.
What are the steps a virus takes to disable host cell's DNA?
a)
assembly, attachment, injection, production, release
b)
release, injection, assembly
c)
attachement, injection, assembly, production, release
d)
attachment, injection, production, assembly, release
132.
AN example of an adaptation is
a)
a change in climate that increases plant growth
b)
movement of animals to an area that has more food & water
c)
a change in location of a squirrel's nest
d)
the ability of a plant to resist fungal disease better
133.
Plants produce auxin in response to which stimulus?
a)
light
b)
gravity
c)
temperature
d)
touch
134.
Mushrooms produce
a)
spores
b)
buds
c)
mold
d)
yeast
135.
Fungi and algae together form
a)
hyphae
b)
mushrooms
c)
lichen
d)
mold
136.
Which best describes the components of an ecosystem?
a)
light, water, soil and temperature
b)
autotrophs and heterotrophs
c)
biotic and abiotic factors
d)
producers, consumers, and decomposers
137.
What is the primary source of energy for most ecosystems?
a)
water
b)
carbon
c)
nitrogen
d)
sunlight
138.
How are decomposers important in an ecosystem?
a)
make atmospheric nitrogen available to plants in a usable form
b)
they convert organic matter into more complex compounds
c)
they are an imporant source of food for scavengers
d)
they break down organic matter into simpler compounds
139.
What factor is least important in determining the plant life in a biome?
a)
average annual rainfall
b)
average annual temperature
c)
the type of soil
d)
the type of animals living there
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