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Final Exam Review
Final Exam Review
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End of first semester review
Flashcards
31 cards
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Practice quiz
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Host live
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Questions
31
Answers
1
The basic unit of mass in the metric system is the
ounce.
liter.
gram.
meter.
2
Which type of pyramid shows the numberof organisms at each trophic level in anecosystem?
a food pyramid
a biomass pyramid
an energy pyramid
a numbers pyramid
3
A theory
is a problem to be solved.
is always true.
may be revised or replaced.
is the opening statement of an experiment.
4
Nitrogen fixation is carried out primarily by
consumers.
plants.
humans.
bacteria.
5
Which of the following is NOT a characteristic of all living things?
ability to reproduce
ability to move
growth and development
response to the environment
6
A flower and an insect that feeds on its nectar is an example of
predation
commensalism
parasitism
mutualism
7
All of the members of a particular species that live in one area are called a (an)
ecosystem.
biome.
population.
community.
8
All the interconnected feeding relationships in an ecosystem make up a food
network.
chain.
interaction.
web.
9
The number of different ecosystemsin the biosphere is called
ecosystem diversity.
biodiversity.
genetic diversity.
species diversity.
10
What does the cytoskeleton do?
Holds the DNA
Gives the cellular bones
Maintains cell shape
None of the above
11
The process of water evaporating from the leaves of a plant is called
transpiration.
condensation.
precipitation.
evaporation.
12
What % of energy is can be passed from one organism to the next?
100%
30%
10%
1%
13
Which organelle produces energy for the cell?
Golgi Apparatus
Mitochondria
ER
Lysosome
14
Your beverage has a pH of 6, it is a(an)
none of the above
acid
base
neutral
15
A group of ecosystems that have the same climate and dominant communities is called a (an)
community.
biosphere.
biome.
landscape.
16
What occurs in a population as it grows?
Thebirthrate and the death rate remain the same.
Thebirthrate becomes higher than the deathrate.
Thebirthrate stays the same, and the death rate increases.
Thebirthrate becomes lower than the death rate.
17
In science, a hypothesis is useful only if
The explanation is already known
It can be proven incorrect
It can be tested
It is proven correct
18
Which term is not associated with the carbon cycle?
Photosynthesis
Decomposition
Transpiration
Burning fossil fuels
19
Information gathered from observing a plant grow 3 cm over a two-week period results in
<div>hypotheses</div>
variables.
inferences.
data
20
150 plants per square km in an area of AZ desert.Which pop characteristic does this refer?
age structure
growth rate
population density
geographic distribution
21
Monosaccharide is to carbs as
fat is to lipid.
DNA is to RNA.
nucleotide is to nucleic acid.
glycerol is to proteins.
22
The main function of the cell wall is to
direct the activities of the cell.
help the cell move.
store DNA.
support and protect the cell.
23
What are the combined portions of Earth called where all living things exist?
communities
biomes
ecosystems
biosphere
24
An organism that cannot make its own food is called a (an)
autotroph.
chemotroph.
producer.
heterotroph.
25
To observe a small living organism, a scientist might use a (an)
electronic balance.
electron microscope.
TEM.
compund light microscope.
26
The cell membrane consists of channels and pumps made of what?
Proteins
Carbohydrates
Lipids
Acids
27
When individuals in a population reproduce at a constant rate, it is called
exponential growth
demographic growth
logistic growth
growth density
28
A light microscope can magnify a specimen up to how many times?
2000
1000
1500
10,000
29
Prokaryotes are
fungi
bacteria
protists
plants
30
The diffusion of water is
active transport
facilitated diffusion
osmotic pressure
osmosis
31
A controlled experiment allows the scientist to isolate and test
a single variable
a mass of information
several variables
a conclusion
