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Worksheets1st semester final
Total questions: 75
Worksheet time: 4hrs 45mins
A student wants to test how different amounts of UV light affect the growth of the bacteria, Staphylococcus aureus. She wants to grow the bacteria in petri dishes for her experiment. Which of the following variables should NOT be held constant in this experiment?
amount of UV light bacteria is exposed to
amount of time to grow bacteria
location of petri dishes while growing bacteria
type of bacteria (Staphylococcus aureus)
A possible explanation for why something happens is called ___.
a variable
an experiment
a hypothesis
an assumption
The variables you keep the same in the experiment are called
independent variables
dependent variables
controlled variables
hypothesis
Experiment: Does changing the wing shape to make it more narrow affect the distance a paper airplane will fly?
The wing shape is the ___________ variable.
independent
dependent
The students grades are the ___________ variable.
The growth height is the ____________ variable.
How does the amount of light affect the growth of a plant? What's the Independent Variable?
The amount of plant growth
The amount of light
The type of light
The type of plant
Which contribute to a positive population growth?
immigration
positive birth rate
emigration
positive death rate
What type of factor has an increasing impact as the population size increases?
density-independent
density-dependent
cohort effect
survivorship factor
Which of the following are density independent factors?
competition for resources
predation
disease
natural disasters
Which of the following are examples of a density dependent factors?
forest fire
pollution
storms
disease
Factors like predation can have a positive benefit to the population of prey organisms because predators tend to keep prey populations below their ___________.
carrying capacity
sustainibility number
exponential growth point
competition level
As a population of a species increases within a territory, which of the following most likely also increases?
Immigration
Food supply
Carrying capacity
Competition
What type of growth model is shown in image A?
Exponential
Logistic
What type of growth model is shown in image B?
Exponential
Logistic
Which choice most closely approximates the deer population's carrying capacity based on the graph?
100
80
60
10
Which population growth model most closely describes the human population in the modern age?
logistic growth
exponential growth
upward growth
tumor growth
Which of the following would cause a population to increase in size?
Emigration
Decreased Birthrate
Immigration
Increased Deathrate
In a given area, if the population of predators increases, the population of prey will _____________.
increase
decrease
remain about the same
go extinct
The maximum amount of organisms of a species that can be supported by an environment is:
exponential growth
logistic growth
population growth
carrying capacity
A density-independent factor happens:
depending on the number of predators hunting prey
depending on the size of the population
if there are no resources left in a habitat
regardless of the size of the population
A biotic or abiotic resource in the environment that causes population size to decrease is a
growth factor
limiting factor
carrying capacity
limiting nutrient
Factor that limits a population and is dependent on the number of organisms in the population.
Density-dependent
Density-independent
Abiotic factors
Biotic factors
what does reactants mean in the following question? "What are the reactants for photosynthesis?"
Inputs
outputs
what's the meaning of products in the following question? "What are the products of photosynthesis?"
Inputs
outputs
What is the energy molecule produced from cellular respiration?
Sugar
What are the products of cellular respiration?
Carbon dioxide, water. & ATP
What is the purpose of photosynthesis?
To release energy
To create glucose
To grow
To get oxygen for respiration
Exit: Carbon dioxide
Exit: Glucose
Exit: Oxygen
Exit: Water vapor
Y : Predation
Y : Decomposition
Y : Nitrogen Fixation
Y : Respiration
Which of the following are fossil fuels?
Coal, water, oil
Oxygen, coal, oil
Coal, Oil, Natural Gas
None of the above
How does carbon become locked inside the earth?
Tree roots expel carbon into the soil as they grow.
Humans use machines to pump carbon dioxide into large underground rocks.
Rocks become richer in carbon as time goes by.
The carbon-rich bodies of plants and animals decay into the earth after they die.
How do carbon emissions lead to global warming?
By trapping the sun's heat in the atmosphere.
By causing very hot volcanic eruptions.
Rocks become richer in carbon as time goes by.
By increasing the amount of carbon in the earth's crust
What are the main difference between weather and climate?
Consist of long-term changes in the atmosphere
Depends on the location
Consist of short-term changes in the atmosphere
Depends on the distance between the equator
What earth subsytem does a plant belong to?
Hydrosphere
Geosphere
Atmosphere
Biosphere
What earth subsytem does limestone belong to?
Hydrosphere
Geosphere
Atmosphere
Biosphere
What earth subsytem does air belong to?
Hydrosphere
Geosphere
Atmosphere
Biosphere
What earth subsytem does a river belong to?
Hydrosphere
Geosphere
Atmosphere
Biosphere
Where do the carbon atoms in your body come from? (one word answer)
(a)
Through which subsytems does carbon travel trough? Click all the apply
Hydrosphere
Geosphere
Atmosphere
Biosphere
Can carbon go from the atmosphere to the hydrosphere?
yes
no
Can carbon go from the atmosphere to the biosphere?
yes
no
Can carbon atoms be destroyed?
yes
no
A carbon sink stores _ carbon than it releases
more
less
