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WorksheetsEcology
Total questions: 100
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
The diagram below shows the cycling of nutrients in an ecosystem.
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
The removal of which of the following groups would cause an immediate decrease in the amount of energy flowing through the system?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Inorganic nutrients
2.
Green plants are
a)
producers
b)
consumers
c)
herbivores
d)
omnivores
3.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
4.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
5.
What is an ecological model of the relationships that form a network of complex interactions among organisms in a community from producers to decomposers?
a)
food web
b)
an ecosystem
c)
food chain
d)
a population
6.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
7.
which symbiosis is this
a)
parasitism
b)
mutualism
c)
commensalism
d)
nonalism
8.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
9.
The energy at each trophic level in the pryamid of energy decreases by a factor of ____.
a)
10
b)
1
c)
100
d)
2
10.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
11.
diagram that shows the energy available to each trophic level in an ecosystem; 10% is passed on to upper levels, the rest is lost as heat
a)
succession
b)
cellular respiration
c)
energy pyramid
d)
biochemical cycle
12.
a relationship between two in which one species, the predator, feeds on the other species, the prey
a)
chemosynthesis
b)
predation
c)
cellular respiration
d)
commensalism
13.
symbiotic relationship in which one organisms benefits and the other organism is not affected
a)
invasive (non-native) species
b)
mutualism
c)
nitrogen fixation
d)
commensalism
14.
Study of interactions between organisms and their environment
a)
niche
b)
community
c)
ecology
d)
ecosystem
15.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
16.
Where an organism lives
a)
habitat
b)
niche
c)
heterotrogh
d)
biosphere
17.
Non-living factor that affects an ecosystem
a)
biotic factor
b)
abiotic factor
c)
food chain
d)
biome
18.
Organisms that breaks down and absorbs nutrients from dead organisms
a)
consumer
b)
trophic level
c)
decomposer
d)
species
19.
A pond ecosystem is shown in the diagram below. Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
Which statement describes an interaction that helps maintain the dynamic equilibrium of this ecosystem?
a)
The frogs make energy available to this ecosystem through the process of photosynthesis.
b)
The algae directly provide food for both the rotifers and the catfish.
c)
The green-backed heron provides energy for the mosquito larvae.
d)
The catfish population helps control the populations of water boatman and waterfleas.
20.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
21.
Series of steps in which organisms transfer energy by eating and being eaten
a)
foodweb
b)
consumer
c)
food chain
d)
omnivore
22.
Organisms that relies on other organisms for food; consumer
a)
herbivore
b)
decomposer
c)
heterotroph
d)
species
23.
All the organisms in a particular location, including their nonliving environment
a)
ecosystem
b)
carnivore
c)
niche
d)
population
24.
What does fungi do to dead plants and animals?
a)
Leave them there
b)
Decompose them
c)
Wait for other animals to eat them
d)
Move away
25.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source.
26.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
27.
Nitrogen fixation processes nitrogen from which of the following sources?
a)
lightning
b)
fertilizers
c)
dead plants
d)
atmosphere
28.
What is it called when water is changed from a liquid to a gas?
a)
EVAPORATION
b)
PRECIPITATION
c)
TRANSPIRATION
29.
Nitrogen makes up _____ percent of the atmosphere.
a)
66%
b)
78%
c)
90%
30.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
31.
Which biome, because of its climate and amount of rainfall, has the largest number of species of plants and animals?
a)
Tundra
b)
Rainforest
c)
Desert
d)
Pineforest
32.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
33.
Examples of a producer
a)
frog
b)
algae
c)
worm
d)
mouse
34.
Example of a decomposer
a)
fungus
b)
mouse
c)
plants
d)
frogs
35.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
36.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
37.
What is a carnivore?
a)
an animal that gets energy by eating other animals
b)
An animal that gets energy by eating only plants
c)
an animal that gets energy by eating both plants and animals
d)
an animal that makes its own energy through photosynthesis
38.
An animal that gets energy from eating both plants and animals is a
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
39.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
40.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
41.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
42.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
43.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
44.
All food chains begin with a ____________.
a)
primary consumer
b)
secondary consumer
c)
producers
d)
scavengers
45.
A producer is a (n) ______________.
a)
heterotroph
b)
omnitroph
c)
autotroph
d)
oscartroph
46.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
47.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
48.
An area where an organism finds food, shelter and water in a specific arrangement
a)
niche
b)
biosphere
c)
biome
d)
habitat
49.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
50.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
51.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
52.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
53.
The area between the highest mountain and the deepest ocean where life can be found
a)
Biosphere
b)
Biome
c)
Farm
d)
Ecosystem
54.
What does every food chain start with? (Even if it's not drawn or written there!)
a)
producers
b)
sun
c)
consumer
d)
decomposers
55.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
56.
In this Food Web Pyramid Which type of consumer gets only 10% of the energy stored in plants?
a)
Herbivore
b)
Carnivore
c)
Omnivore
d)
Secondary Consumer
57.
Which one is not a consumer?
a)
anemone
b)
bear
c)
shark
d)
vulture
58.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
59.
What are the Abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
birds, water, dirt
d)
plants, water
60.
A secondary consumer
a)
eats primary consumers
b)
eats producers
c)
eats plants
61.
Which of the following illustrates the correct ordering of trophic levels?
a)
decomposers-carnivores-autotrophs-herbivores
b)
herbivores-autotrophs-carnivores-decomposers
c)
producers-herbivores-carnivores-decomposers
d)
carnivores-producers-omnivores
62.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
63.
Which organism receives the least amount of energy from the producer?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
64.
In the food web shown, which is the tertiary consumer?
a)
large lizard
b)
snake
c)
scorpion
d)
desert fox
65.
At what stage does this population reach it's carrying capacity on the Demographic Transition Model
a)
1
b)
2
c)
3
d)
4
66.
When a plant uptakes water and transpires it to the atmosphere, this is known as _______
a)
Condensation
b)
Evapotranspiration
c)
Infiltration
d)
Aquifer
67.
Bacteria which convert nitrogen gas into bio-available forms of nitrogen, such as ammonia and nitrate, are known as _____
a)
De-nitrification bacteria
b)
Nitrogen fixing bacteria
c)
Oxidizers
d)
Buffers
68.
Approximately 90 percent of energy iconsumed by an organism is lost to ___
a)
Growth
b)
Inefficiencies in its metabolism
c)
Repairing cells
d)
Carbon dioxide
69.
What is the greenhouse effect?
a)
It is a phenomenon where the sun’s rays are absorbed by clouds.
b)
It is a phenomenon that occurs when heat escapes into space.
c)
It is when heat is trapped by gases, then sent back to earth’s surface.
d)
It describes the atmosphere’s composition.
70.
Barnacles are animals that cannot move. In order to get food, they attach to whales and catch any floating plankton in the water. The whale is neither helped nor harmed in the interaction. What type of symbiosis is this?
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Neutralism
71.
In the wild, some alligators gets their teeth cleaned by birds. The birds gets their food from the alligators' teeth.
What type of symbiosis is this?
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Neutralism
72.
In an ecosystem, there are populations of moose, rabbits, grass, and pine trees. Suddenly, a fire blazes through the area, which kills all of the populations. As the months go on, new species of grass begin to take root. This attracts animals, and eventually the ecosystem is restored.
What type of ecological succession happened?
a)
Primary succession
b)
Secondary succession
c)
Tertiary succession
d)
None of the above
73.
What is this picture describing?
a)
It is describing natural selection.
b)
It is describing direct competition between flamingos and ducks.
c)
It is describing abiotic factors of the tundra.
d)
It is describing the niche of each bird.
74.
What Biome is covered in permafrost (frozen subsoils)?
a)
Tropical Rain Forest
b)
Desert
c)
Tundra
d)
Tropical Savanna
75.
What Biome is also known as the grasslands?
a)
Tropical Rain Forest
b)
Desert
c)
Tundra
d)
Tropical Savanna
76.
What Biome is covered in a dense canopy and an understory?
a)
Tropical Rain Forest
b)
Desert
c)
Tundra
d)
Tropical Savanna
77.
What Biome is very dry; receives very little rainfall?
a)
Tropical Rain Forest
b)
Desert
c)
Tundra
d)
Tropical Savanna
78.
The animal species shown above would most likely be found wild in which of the following biomes?
a)
grassland
b)
temperate forest
c)
tropical rainforest
d)
arctic tundra
79.
Which of the following interactions is an example of symbiosis?
a)
an insect acts as a pollinator for a plant species
b)
a population of hummingbirds migrates during the summer
c)
a tropical bird performs a courtship dance for a mate
d)
a mother bear feeds and protects her cubs
80.
A farmer plants two species of grass with similar nutrient needs on the same small plot of land. What kind of interaction will most likely occur between the two species?
a)
parasitism
b)
competition
c)
commensalism
d)
mutualism
81.
The diagram below depicts the water cycle. Which process is represented by the number 2?
a)
precipitation
b)
evaporation
c)
surface runoff
d)
condensation
82.
An increase in the atmospheric levels of carbon dioxide (CO2) is the biggest contributor to which of the following?
a)
El Nino
b)
global warming
c)
wind storms
d)
ozone depletion
83.
Which human activity has had the greatest impact on climate change?
a)
building skyscrapers
b)
deforestation
c)
burning fossil fuels
d)
production of nuclear waste
84.
The graph below shows population data for two species. What can be said about the relationship between species 1 and species 2?
a)
When the population of species 1 increases, the population of species 2 decreases.
b)
The population of species 1 and species 2 stay the same over the time period shown.
c)
The population of species 1 is not influenced by the population of species 2.
d)
When the population of species 1 increases, the population of species 2 increases.
85.
Overpopulation occurs when a population exceeds its carrying capacity. White-tailed deer are considered to be an overpopulated species in the central United States. What is one consequence of white-tailed deer exceeding their carrying capacity?
a)
People don't see deer as often in urban areas.
b)
The deer are less healthy and more prone to disease.
c)
There are more predators to eat the deer.
d)
The deer have stopped breeding.
86.
After a natural disaster such as a hurricane or tornado, what will happen in the damaged ecosystem?
a)
Nothing; it will remain uninhabited.
b)
A new, different ecosystem will evolve.
c)
An ecosystem like the previous one will be re-established.
d)
No one really knows what to expect after a natural disaster.
87.
78% of Earth's atmosphere is nitrogen gas. All living things need nitrogen as a part of DNA and RNA. Yet you and I, and other living things, cannot use the nitrogen in our atmosphere directly. One type of organism is responsible for "fixing" nitrogen or helping to put it in a form so other living things can use it. That organism is
a)
bacteria.
b)
fungi.
c)
plants.
d)
viruses.
88.
What factor describes when populations increase because animals are moving into a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
89.
What factor describes when populations decrease because animals are moving out of a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
90.
What does the graph represent?
a)
Emigration
b)
Exponential growth
c)
Immigration
d)
Logistic Growth
91.
What is the carrying capacity of the following graph?
a)
1000
b)
8000
c)
800
d)
600
92.
As a population grows, it will most likely stop growing at what size?
a)
Growth limit
b)
Exponential limit
c)
Carrying Capacity
d)
It won't stop growing
93.
The carrying capacity of an environment for a particular species at a particular time is determined by the
a)
number of individuals
in the species.
b)
distribution of the
population.
c)
reproductive
potential of the species.
d)
supply of the most
limited resources
94.
No two species can occupy the same niche
a)
Competitive Exclusion Principle
b)
Limiting Exclusion Theory
c)
Competitive Limiting Principle
d)
Limiting Competitive Theory
95.
Which kind of growth does the human population follow? It is described as a J-shaped curve.
a)
Exponential Growth
b)
Logistic Growth
c)
Outstanding Growth
d)
Minimal Growth
96.
Which of the following could result in Primary Succession?
a)
Forest Fire
b)
Volcano eruption of lava covering all life
c)
Mowing the lawn on a hot summer for your entire neighborhood
d)
Tsunami
97.
The synthesis of organic compounds by certain bacteria, especially in deep-sea hydrothermal vents, using energy obtained from the chemical oxidation of simple inorganic compounds.
a)
photosynthesis
b)
chemosynthesis
c)
geochemicalsynthesis
d)
astrosynthesis
98.
Earthworm
a)
carnivore
b)
herbivore
c)
detrivore
d)
omnivore
99.
SNAIL
a)
omnivore
b)
herbivore
c)
Detritivore
d)
carnivore
100.
What of the following is listed in order correctly from smallest to largest?
a)
organism, community, population, ecosystem, biome
b)
organism, population, community, ecosystem, biome
c)
organism, ecosystem, community, biome, population
d)
organism, population, ecosystem, community, biome
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