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WorksheetsEcology Review
Total questions: 117
Worksheet time: 1hrs 26mins
Name
Class
Date
1.
Which of the following do all living things need to survive?
a)
oxygen
b)
water
c)
sunlight
d)
carbon dioxide
2.
Which of the following is NOT a characteristic that all living things share?
a)
using energy
b)
a cellular organization
c)
response to surroundings
d)
movement
3.
A(n) ___ is the smallest unit of an organism that carries out the function of life.
a)
atom
b)
molecule
c)
cell
d)
tissue
4.
All living things must maintain ___, which is the balance of all their internal conditions.
a)
homeostatis
b)
stimuli
c)
space
d)
reproduction
5.
Any living thing is called a(n)
a)
molecule
b)
organism
c)
animal
d)
human
6.
Growth in multi-cellular organisms is due to a ______ in cells.
a)
shrinkage
b)
enlargement
c)
decrease
d)
increase
7.
All of the changes that take place during the life of an organism is called
a)
change
b)
evolution
c)
development
d)
growth
8.
The length of time an organism is expected to live is its
a)
life-span
b)
life
c)
death sentence
d)
evolutionary history
9.
Anything that causes some change in an organism is a
a)
reaction
b)
stimulus
c)
alteration
d)
evolution
10.
The reaction to a stimulus is a
a)
calling
b)
allergic
c)
reaction
d)
response
11.
The regulation of an organism's internal, life-maintaining condition despite changes in its environment is called
a)
balance
b)
homeostasis
c)
evolution
d)
control
12.
The energy used by most organisms comes either directly or indirectly from the
a)
air
b)
earth
c)
sun
d)
atmospher
13.
All of these are required for living organisms to survive except
a)
Food
b)
Place to Live
c)
Water
d)
Candy
14.
What is the difference between asexual and sexual reproduction?
a)
Asexual requires 1 parent while sexual require 2 parents.
b)
Asexual requires 2 parents while sexual requires 1 parent.
c)
Asexual produces 2 offspring while sexual produces 1 offspring.
d)
Asexual produces 1 offspring while sexual produces 2 offspring.
15.
A new one-celled organism is found by a scientist. This organism is said to be
a)
multicellular.
b)
prokaryotic.
c)
eukaryotic.
d)
unicellular.
16.
Which of the following characterisitcs do all plants share?
a)
being unicellular
b)
being a autotroph
c)
being a prokaryote
d)
producing flowers
17.
A change in an organism's surroundings that causes it to react is called
a)
a stimulus.
b)
a response.
c)
development.
d)
energy.
18.
A plant grows toward the light. The plant's action is an example of
a)
reproduction.
b)
a response.
c)
a stimulus.
d)
development.
19.
The source of energy for most autotrophs is
a)
heterotrophs.
b)
the sun.
c)
water.
d)
other autotrophs.
20.
An organism that makes its own food is called a(n)
a)
eukaryote
b)
heterotroph
c)
prokaryote
d)
autotroph
21.
Homeostasis refers to an organism's ability to
a)
compete for living space.
b)
dissolve chemicals.
c)
maintain stable internal conditions.
d)
obtain energy.
22.
What organisms must get their food from other living things?
a)
autotrophs
b)
heterotrophs
23.
What are organisms that can make their own food through the process of photosynthesis?
a)
autotrophs
b)
heterotrophs
24.
Which of the following is not a characteristic of all living things?
a)
they need energy and other resources
b)
they grow and develop
c)
they have a beating heart
d)
they reproduce
25.
Which kind of reproduction requires only one parent and the offspring is identical to the parent?
a)
asexual reproduction
b)
sexual reproduction
26.
Which kind of reproduction requires two parents and the offspring have characteristics of both parents?
a)
sexual reproduction
b)
asexual reproduction
27.
What is the process of an organism getting larger called?
a)
growth
b)
development
c)
reproduction
d)
stimuli
28.
What is the process of an organism becoming more complex as it grows?
a)
growth
b)
development
c)
reproduction
d)
stimuli
29.
What term means made of only one cell?
a)
unicellular
b)
multicellular
c)
prokaryotic
d)
eukaryotic
30.
What term means made up of many cells?
a)
unicellular
b)
multi-cellular
c)
prokaryotic
d)
eukaryotic
31.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
32.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
33.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
34.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
35.
An organism that lives by breaking apart dead organic matter into simpler parts is...
a)
scavenger
b)
consumer
c)
decomposer
d)
carnivore
36.
A third-level consumer has to be which type?
a)
Carnivore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
37.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
38.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms.
d)
How carnivores get their food.
39.
Bacteria, fungi, and earthworms are examples of:
a)
scavengers
b)
predators
c)
prey
d)
decomposers
40.
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
Grass > Grasshopper > Bird > Snake
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
41.
If the grasshopper were to be removed completely from the food web, what organism would be most effected?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
42.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
43.
Which is a producer?
a)
deer
b)
tall grass
c)
lion
d)
worm
44.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
45.
Which level has the most energy available?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
46.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
47.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
48.
How much energy is available to be passed on to the next trophic level in an ecosystem?
a)
100%
b)
10%
c)
50%
d)
75%
49.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
50.
The fox in this food web would be considered a:
a)
Tertiary Consumer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
51.
The mouse in this food web would be considered a:
a)
Primary Consumer
b)
Producer
c)
Tertiary Consumer
d)
Secondary Consumer
52.
What is a trophic level?
a)
Each level represented within a food chain or web.
b)
Levels of ecosystems that the world is divided into.
c)
Different levels of nutrients present within an organism.
d)
The levels of sunlight an autotroph needs to survive.
53.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
54.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
55.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them.
b)
They may eat more than one other organism.
c)
This organism gets its energy from multiple sources.
d)
They have no resources available to them.
56.
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
a)
There would be a decrease in the small bird population.
b)
There would be a decrease in the grass/flowers population.
c)
There would be a decrease in the mice population.
d)
There would be an increase in the grass/flowers population.
57.
A consumer that hunts is called:
a)
a producer.
b)
an omnivore.
c)
a predator.
d)
a herbivore.
58.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
59.
A tapeworm inside a dog is
a)
competition
b)
predation
c)
commensalism
d)
parasitism
60.
A symbiotic relationship that involves species having to fight for something they both need or want
a)
competition
b)
predation
c)
commensalism
d)
parasitism
61.
Plants both trying to get sunlight are
a)
commensalism
b)
mutualism
c)
compeition
d)
parasitism
62.
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
63.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
64.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
65.
What type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
66.
What type of symbiosis? Skunks often live in burrows that have been dug and abandoned by woodchucks.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
67.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
68.
Red-billed oxpeckers are birds that often feed on parasites that infest impala. This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
69.
A relationship between two organisms in which both organisms benefit.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
70.
When a mosquito bites you, you are the __________ and the mosquito is the ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
71.
Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.
a)
Predation
b)
Parasitism
c)
Commensalism
d)
Mutualism
72.
What type of symbiosis is this?
*Hermit crabs find shells left by snails that have died and move in.
* Snails die and leave behind their shells.
*Hermit crabs find shells left by snails that have died and move in.
* Snails die and leave behind their shells.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
73.
Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales. What kind of relationship is this?
a)
Mutualism
b)
Parasitism
c)
Commensalism
74.
A relationship between two organisms in which both organisms benefit.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
75.
A relationship between two organisms in which one organism benefits and the other is unharmed
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
76.
A frog eats a fly. The frog and fly are demonstrating ________.
a)
mutualism
b)
competition
c)
predator/prey
d)
parasitism
77.
The variety of life in an area that is determined by the number of different species in that area.
a)
Biodiversity
b)
Genetic diversity
c)
Species diversity
d)
Ecosystem diversity
78.
Ecological issue shown in the diagram.
a)
Biological Magnification
b)
Acid precipitation
c)
Eutrophication
d)
Invasive (introduced) species
e)
Pollution
79.
The sum total of the variety of organisms in the biosphere
a)
demography
b)
immigration
c)
biodiversity
d)
population density
80.
Increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web
a)
carrying capacity
b)
endangered species
c)
biological magnification
d)
global warming
81.
This graph shows
a)
carrying capacity
b)
population density
c)
sustainable development
d)
pollutant
82.
Scientific study of human populations
a)
demography
b)
age structure diagram
c)
population density
d)
extinction
83.
movement of individuals out of an area
a)
immigration
b)
emigration
c)
predator-prey relationship
d)
demography
84.
term used to describe a species that has completely died out
a)
endangered species
b)
extinction
c)
immigration
d)
density-dependent
85.
movement of individuals into an existing population
a)
immigration
b)
emigration
c)
carrying capacity
d)
limiting factor
86.
Plants and animals that migrated to places where they are not native and cause harm to the native species
a)
introduced
b)
invasive
c)
extinct
d)
endangered
87.
factor that causes the growth of a population decrease
a)
limiting
b)
conservation
c)
ozone
d)
demography
88.
number of individuals per unit area
a)
predator-prey
b)
density-dependent
c)
density-independent
d)
population density
89.
Water temperature would be an example of ...
a)
a biotic factor.
b)
an abiotic factor.
90.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
91.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
92.
A collection of organisms that make up a community as well as all of the nonliving aspects of the environment.
a)
Population
b)
Community
c)
Habitat
d)
Ecosystem
93.
The role or function or job of a species in a community.
a)
habitat
b)
diet
c)
niche
d)
ecosystem
94.
Two organisms that are so similar they can interbreed in nature and produce fertile offspring
a)
biotic factor
b)
herbivore
c)
ecosystem
d)
species
95.
Nonliving factor that affects an ecosystem...
a)
biotic factor
b)
abiotic factor
c)
food chain
d)
biome
96.
Part of the earth that living organisms inhabit...
a)
biosphere
b)
biome
c)
niche
d)
ecosystem
97.
Living factors or organisms that affect an ecosystem
a)
abiotic factors
b)
species
c)
trophic level
d)
biotic factors
98.
What are the biotic factors in this image?
a)
sunlight, elephants, and grasses
b)
sunlight, water, and air
c)
elephants, plants, trees
99.
What are the abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
water, plants, and birds
100.
An ecosystem contains living and nonliving things.
a)
True
b)
False
101.
Which of the following is a population?
a)
hawks, barred owls, and eagles on NC coast
b)
mountain stream
c)
all the frogs in a pond
d)
blue-tailed skinks (lizards) around a barn
102.
Which best describes a diurnal animal?
a)
hawk that hunts in day
b)
barn owl hunting at night
c)
opossum feeding at night
d)
bats roosting during the day
103.
Which of the following best describes a community?
a)
sharks, groupers, anemones and shrimp on a coral reef
b)
decorator crabs on the seafloor
c)
loggerhead sea turtles in Atlantic
d)
prairie grassland in Wyoming
104.
Which level of organization is the most complex?
a)
organism
b)
population
c)
community
d)
ecosystem
105.
Multiple organisms of the same species describes a
a)
organism
b)
population
c)
community
d)
ecosystem
106.
What do ecosystems have that the other three levels of organization do not have?
a)
living things
b)
biotic factors
c)
abiotic factors
d)
organisms
107.
A forest full of many kinds of trees and grasses is an example of a
a)
group
b)
organism
c)
population
d)
community
108.
Which is an example of an organism?
a)
a beetle
b)
a lake
c)
a rock
d)
a shell
109.
Which is an example of an ecosystem?
a)
Jungle animals
b)
forest plants
c)
The tundra
d)
Savanna temperatures
110.
Which level of organization is more complex than a population and less complex than an ecosystem?
a)
organism
b)
population
c)
community
d)
ecosystem
111.
Which is an example of a population?
a)
different kinds of bacteria
b)
A group of fish and sharks
c)
deer, bear, and rabbits
d)
A herd of cattle
112.
which is the correct order of the levels of organization from simple to complex?
a)
organism, population, community, ecosystem
b)
ecosystem, community, population, organism
113.
Which is the definition of a community
a)
multiple organisms of the same species
b)
all the living and nonliving things in an area
c)
a living thing
d)
multiple organisms of different species
114.
Any abiotic or biotic factor in an ecosystem that causes a population’s size to slow or decrease is a ____________ factor.
a)
growth
b)
limiting
c)
carrying
d)
density dependent
115.
largest number of individuals of a population that the environment can support
a)
carrying capacity
b)
primary succession
c)
denitrification
d)
mutualism
116.
Which dispersion pattern is described by organisms being spaced out equally?
a)
Uniform
b)
Random
c)
Clumped
d)
None of these
117.
Which dispersion pattern usually is a result of resources not being evenly spread out in the environment?
a)
Uniform
b)
Random
c)
Clumped
d)
None of these
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