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WorksheetsHigh School Biology – Multiple Choice Test
Total questions: 54
Worksheet time: 28mins
Humans conserve land and water primarily to
increase urban development
protect biodiversity and ecosystems
reduce rainfall
prevent earthquakes
An ecosystem consists of
only plants
living and nonliving components that interact
only animals
only water and air
Human activities affect ecosystems by
A. changing habitats and nutrient cycles
B. creating planets
C. controlling gravity
D. generating stars
Scientists study protected ecosystems to
eliminate species
understand how to manage ecosystems in the future
stop photosynthesis
increase soil erosion
The Serengeti is known for its
low biodiversity
high biodiversity and large mammal migration
deserts
coral reefs
The Serengeti National Park was established to protect the
coral reefs
great migration
glaciers
volcanoes
The Great Migration primarily involves
Wildebeest
Lions
African Wild Dogs
Most wildebeest die from
predators
starvation
accidents
disease
The main factor that motivates wildebeest migration is
water availability
food availability
predation
temperature
The Serengeti has
wet and dry seasons
constant rainfall year-round
snow
desert conditions
Migration increases the
population’s carrying capacity
number of predators
soil erosion
rainfall
Interest holders have different
diets
goals and criteria for judging conservation success
sleep schedules
favorite animals
Conservation success depends on
meeting goals while minimizing negative impacts on stakeholders
planting only one species
eliminating all predators
stopping migration
The main limiting factor regulating wildebeest populations is
predation
food availability
water depth
soil type
When resources run out, wildebeest may
migrate or die
hibernate
photosynthesize
reproduce faster
16. Zombie fires
burn only in summer
burn underground during winter
do not produce carbon dioxide
cool the soil
In zombie fires, ________________ is burning beneath thawing permafrost.
ice
peat
sand
rocks
Peat is made of
sand and clay
ancient plant material
metals
water only
Burning peat releases
oxygen
nitrogen
carbon dioxide
helium
Permafrost is
soil that melts yearly
ground that remains frozen for many years
sand dunes
surface water
Cold temperatures and low oxygen levels in permafrost
speed up decomposition
slow decomposition and create a carbon sink
melt glaciers
increase rainfall
Energy and matter from dead plants are typically returned to the atmosphere by
sunlight
decomposers
rainfall
volcanoes
Yeast use sugar during cellular respiration to produce
carbon dioxide and water
oxygen only
methane
starch
Slow decomposition in permafrost prevents matter and energy from
entering the system
leaving the system
being produced
photosynthesizing
Increased solar radiation allows plants to
capture more energy and store carbon in sugar
lose all carbon
die immediately
stop photosynthesis
Photosynthesis converts
carbon dioxide and water into sugar and oxygen
oxygen and sugar into carbon dioxide
energy into water only
sunlight into nitrogen
Plants convert excess sugar into
starch
oxygen
carbon dioxide
helium
Layers of partially decomposed plants form
peat
sand
clay
rock
When permafrost thaws and peat decomposes or burns, it releases
oxygen only
carbon dioxide
hydrogen
methane only
A positive feedback loop
reinforces the original cause
stops change
counteracts change
has no effect
Increased carbon dioxide causes
lower temperatures
higher temperatures and potential for more wildfires
Photosynthesis captures energy from
water
sunlight
soil
carbon dioxide
When plants die in cold, wet conditions, decomposition is slowed and
carbon remains stored
oxygen is destroyed
carbon is released immediately
water freezes instantly
Conservation plans aim to
support ecosystem resilience while meeting goals
eliminate all predators
stop plant growth
remove wetlands
Observing protected ecosystems helps scientists
predict how to conserve new spaces in the future
destroy ecosystems
increase extinction rates
reduce rainfall
Migration helps populations by
decreasing carrying capacity
allowing access to new resources
increasing competition only
preventing movement
If food is scarce, wildebeest may
migrate or die
photosynthesize
hibernate
reproduce immediately
Zombie fires contribute to climate change by
storing carbon
releasing carbon dioxide
reducing temperatures
creating oxygen
Permafrost thaw is an example of
Decomposers release energy from sugar through
photosynthesis
cellular respiration
nuclear reactions
burning only
The Serengeti’s wet and dry seasons affect
predator hunting
plant growth and migration patterns
rainfall only
volcanic activity
Most wildebeest deaths are caused by
disease
predation
starvation
accidents
Conservation success depends on
ignoring interest holders
meeting goals while minimizing negative impacts
eliminating migration
planting one species only
Peat stores carbon because
decomposition is slow in cold, low-oxygen conditions
it burns immediately
sunlight destroys it
oxygen is absent only
Energy from sunlight is captured by plants to make
carbon dioxide
glucose
water only
nitrogen
When solar radiation decreases in the Arctic,
plants die and peat forms
plants grow faster
carbon is released immediately
permafrost melts instantly
Interest holders judge conservation success based on
different criteria
the same criteria always
personal preferences only
weather patterns only
Migration allows populations to
reduce competition and increase carrying capacity
remain in one location
increase predation only
avoid sunlight
Observing protected ecosystems helps scientists
learn how to protect more spaces in the future
destroy habitats
stop migration
reduce biodiversity
Positive feedback loops in ecosystems result in
effects that reinforce the original cause
effects that counteract the original cause
no change
immediate extinction
On March 24, 1989, an oil tanker ran aground on Bligh Reef in Prince William Sound, Alaska, and spilled millions of liters of crude oil. The graph shows pink salmon populations in Prince William Sound from 1970 to 1999.
What do these data suggest about the effect the oil spill had on pink salmon?
Pink salmon were nearly eliminated after the oil spill.
Pink salmon populations seemed to be minimally affected.
Pink salmon populations steadily declined in the 10 years following the spill.
Pink salmon populations declined and never fully recovered.
This graph illustrates the effect of pesticides on mosquitoes. Pesticides are applied to the mosquito population every year.
Was this a short-term or a long-term change to the environment?
short-term
long-term
The green sea turtle is an endangered species. The graph above shows the estimated number of green sea turtle nests on a beach in Costa Rica between 1970 and 2003.
Based on the information in the graph, which of the following is the most likely way humans affected the green sea turtle population during this time?
Humans passed laws preventing the collection of green sea turtles.
Humans collected more green sea turtle eggs for scientists to study.
Humans passed laws protecting animals that eat green sea turtle eggs.
Humans built more hotels on the beach where green sea turtles build nests.
