WorksheetsEcology Quiz
Total questions: 20
Worksheet time: 20mins
In an ocean, the growth and survival of seaweed, small fish, and sharks depends on abiotic factors such as
sunlight, temperature, and minerals
sunlight, pH, and type of seaweed
number of decomposers, carbon dioxide, and nitrogen
number of herbivores, carbon, and food
Which component of a stable ecosystem is not recycled?
oxygen
water
energy
nitrogen
One biotic factor that limits carrying capacity of any habitat is the
availability of water
level of atmospheric oxygen
activity of decomposers
amount of soil erosion
The growth of a population is shown in the graph.
Which letter indicates the carrying capacity of the environment for the population?
A
B
C
D
Cattail plants in freshwater swamps of New York State are being replaced by purple loosestrife plants. The two species have very similar environmental requirements. This observation best illustrates
variations within a species
dynamic equilibrium
random recombination
competition between species
Two closely related species of birds live in the same tree. Species A feeds on ants and termites, while species B feeds on caterpillars. The two species coexist successfully because
each occupies a different niche
they interbreed
they use different methods of reproduction
birds compete for food
In a stable, long existing community, the establishment of one species per niche is most directly the result of
parasitism
interbreeding
competition
overproduction
Carbon dioxide containing carbon14 ia introduced into a balanced aquarium ecosystem. After several weeks, carbon14 will most likely be present in
the plants, only
the animals, only
both the plants and animals
neither the plants, nor animals
One aquatic food chain consists of polar bears, fish, weed, and seals. Which sequence demonstrates the correct flow of energy between these organisms?
seals->weed->fish ->polar bears
fish->weed->polar bears->seals
weed->fish->seals ->polar bears
polar bears->fish ->seals->weed
The Pine Bush ecosystem near Albany, New York, is one of the last known habitats of the nearly extinct Karner Blue butterfly. The butterfly's larvae feed on the wild green plant, lupine. The larvae are in turn consumed by predatory wasps. The four groups in the chart represent other organisms living in this ecosystem. The Karner Blue larvae belong in which group?
A
B
C
D
The Pine Bush ecosystem near Albany, New York, is one of the last known habitats of the nearly extinct Karner Blue butterfly. The butterfly's larvae feed on the wild green plant, lupine. The larvae are in turn consumed by predatory wasps. The four groups in the chart represent other organisms living in this ecosystem. Which food chain best represents information in the passage?
lupine -> Karner Blue larvae -> wasps
wasps > Karner Blue larvae -> lupine
Karner Blue larvae -> lupine -> wasps
lupine -> wasps -> Karner Blue larvae
Which group contains decomposers?
A
B
C
D
Two food chains are represented below.
Food chain A: aquatic plant -> insect -> frog -> hawk
Food chain B: grass -> rabbit -> hawk
Decomposers are important for supplying energy for
food chain A, only
food chain B, only
both food chain A and food chain B
neither food chain A nor food chain B
In the transfer of energy from the Sun to ecosystems, which molecule is one of the first to store this energy?
protein
fat
DNA
glucose
Dissolved carbon dioxide in the pond is used directly by
autotrophs
parasites
fungi
decomposers
Identify one cell structure found in a producer that is not found I a carnivore.
What would most likely happen if most of the bacteria and fungi were removed from an ecosystem?
Nutrients resulting from decomposition would be reduced.
Energy provided for autotrophic nutrition would be reduce.
The rate of mutations in plants would increase.
Soil fertility would increase.
State one piece of evidence from the diagram that indicates that light penetrates to the bottom of the lake.
Identify the type of organism that is not visible in the diagram but must be present in the ecosystem to recycle the remains of dead organisms.
X-axis - downstream sampling sites
Y-axis - Relative amount of dissolved oxygen in parts Per Million (ppm)
Untreated organic wastes were accidentally discharged into a river from a sewage treatment plant. The graph shows the dissolved oxygen content of water samples taken from the river at a specific distance downstream from the plant, both before and after the discharge occurred. State one reason why the statement below is correct. "The effects of the accidental damage are not expected to last for a long time."
