NEW
Font size
S
M
L
XL
WorksheetsEcosystems review
Total questions: 52
Worksheet time: 34mins
Name
Class
Date
1.
A wolf eating a deer is an example of
a)
Predator / Prey
b)
Symbiosis
c)
Parasites
d)
All of them
2.
Symbiosis is a _______________ between two organisms
a)
short-term relationship
b)
Long-term relationship
c)
win-win relationship
d)
lose-lose relationship
3.
Which group contains only biotic factors?
a)
ticks, water and grass
b)
trees, fish and shrubs
c)
toads, rocks and lily pads
d)
soil, sun and rocks
4.
These organisms can't make their own energy so they eat plants / animals
a)
Carnivores
b)
Producers
c)
Consumers
d)
Prey
5.
Animals that hunt and kill other animals for food
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Scavengers
6.
Animals that eat both plants and animals.
a)
Omnivores
b)
Carnivores
c)
Herbivores
d)
Scavengers
7.
Animals that only eat plants.
a)
Omnivores
b)
Carnivores
c)
Herbivores
d)
Scavengers
8.
Which term best describes the relationship between a tick and a dog?
a)
competition
b)
Symbiosis
c)
predator and prey
d)
producer and consumer
9.
Consumers are organisms that make their own food for energy
a)
true
b)
false
10.
The arrows in a food web or food chain point to the...
a)
organism being eaten
b)
organism that is eating
c)
organism that is moving
d)
organism that is decaying
11.
A place that provides all the things an organism need to survive is a...
a)
habitat
b)
niche
c)
ecosystem
d)
community
12.
Which of these is NOT a producer?
a)
The sun
b)
Oak tree
c)
a daisy
d)
They are all producers
13.
What term best describes the relationship between an owl and a field mouse?
a)
symbiosis
b)
competition
c)
producer and consumer
d)
predator and prey
14.
Scavengers get energy by breaking down wastes and dead organisms
a)
true
b)
false
15.
The number of organisms that can live in a given ecosystem is called...
a)
carrying capacity
b)
niche
c)
community
d)
habitat
16.
A dead tree is an abiotic factor
a)
true
b)
false
17.
Which of these is NOT an example of symbiosis?
a)
Pilot fish and sharks
b)
Tick and a dog
c)
Hawk and a mouse
d)
Tapeworm and human
18.
Most humans can be considered scavengers because we only eat already dead animals
a)
true
b)
false
19.
An organism that is hunted and eaten by another is called...
a)
predator
b)
prey
c)
producer
d)
consumer
20.
Which group contains only abiotic factors?
a)
sunlight, fish, soil
b)
cacti, foxes, scorpions
c)
sand, water, paper
d)
pencils, pine trees, snow
21.
a group of organisms of one species that live in an area at the same time
a)
ecosystem
b)
population
c)
community
d)
habitat
22.
Which of these is NOT a consumer?
a)
shark
b)
tick
c)
human
d)
earthworm
23.
A heartworm (which is a parasite) in a dog is a example of symbiosis
a)
mutualism
b)
Commensalism
c)
Parasitism
24.
Which is more complex?
a)
food web
b)
food chain
25.
The specific role an organism has in an ecosystem
a)
population
b)
prey
c)
niche
d)
predator
26.
Different populations in an area is...
a)
a population
b)
an ecosystem
c)
a community
d)
a habitat
27.
The number of oak trees in Zionsville is...
a)
the carrying capacity
b)
the population
c)
the abiotic factors
d)
its niche
28.
All the living and nonliving things in an area and their interactions is...
a)
an ecosystem
b)
a niche
c)
a habitat
d)
a population
29.
Paper is a biotic factor
a)
yes
b)
no
c)
sometimes
d)
probably
30.
The main difference between a carnivore and a scavenger is...
a)
A scavenger hunts and kills other animals
b)
A carnivore hunts and kills other animals
c)
A scavenger eats plants and animals, a carnivore doesn't
d)
A carnivore eats plants and animals, a scavenger doesn't
31.
A coral reef is made of the skeletons of dead reef animals. That means a coral reef is
a)
abiotic
b)
biotic
c)
neither
32.
When a habitat reaches its carrying capacity, what is most likely to happen?
a)
all organisms will die
b)
organisms must move to another habitat or die
c)
they will work together to find a solution
33.
Carol thinks bees are producers because they make honey, but Grace disagrees. Who is right?
a)
Carol
b)
Grace
34.
A tiger is a...
a)
scavenger
b)
consumer
c)
producer
d)
decomposer
35.
Which of these organisms most likely comes last in a food chain?
a)
scavenger
b)
consumer
c)
decomposer
d)
producer
36.
Coyotes eat rabbits which eat clover. What would happen if the number of coyotes decreases?
a)
the rabbits and clover would decrease
b)
The rabbits and clover would increase
c)
The rabbits would increase, but the clover would decrease
d)
The rabbits would decrease, but the clover would increase
37.
Which is a biotic factor?
a)
sunlight
b)
air
c)
bacteria
d)
all of the above
38.
Which statement is correct?
a)
A population is the same as a community
b)
A community is a group of populations
c)
A community is a part of a population
d)
A population is a group of communities
39.
Decomposers get their food by __________.
a)
making it themselves
b)
eating live organisms
c)
using dead organisms
d)
eating themselves
40.
Field mice eat corn. Which would most likely happen if the field mouse population increased?
a)
There would be more corn to feed the field mice.
b)
There would be less corn due to the mice eating it.
c)
The habitat would get overpopulated because the mice would eat too much.
41.
If the population of prey increases, the population of predators will ________because of the availability of food.
a)
decrease
b)
stay the same
c)
increase
42.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
43.
A connection of food chains showing how energy moves in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population
44.
Which is an example of a biotic factor in a desert?
a)
Sun
b)
soil
c)
snake
d)
minerals
45.
A relationship in which two species live closely together.
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
46.
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
47.
A relationship between two organisms in which both organisms benefit.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
48.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
49.
A frog eats a fly. The frog and fly are demonstrating ________.
a)
mutualism
b)
competition
c)
predator/prey
d)
parasitism
50.
What happens if a population grows past its carrying capacity?
a)
The population keeps growing
b)
The population starts to die off
c)
The entire species will go extinct
d)
The carrying capacity just increases
51.
The largest number of organisms an environment can support long term is...
a)
carrying capacity
b)
emigration
c)
immigration
d)
population density
52.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
Reset
