Font size
S
M
L
XL
WorksheetsEcology
Total questions: 90
Worksheet time: 1hrs 5mins
Name
Class
Date
1.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
2.
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
3.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
4.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
5.
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.
6.
Members of a species in a defined area
a)
Ecosystem
b)
community
c)
biodiversity
d)
population
7.
All the organisms in a particular location, including their nonliving environment
a)
ecosystem
b)
carnivore
c)
niche
d)
population
8.
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
9.
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.
10.
Which of the following leads to a decrease in biodiversity?
a)
protection of ecosystems
b)
pollution control
c)
selective cutting
d)
introduction of exotic or invasive species
11.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
12.
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
13.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
14.
All these organisms share the same
a)
Biome
b)
Population
c)
Community
d)
Habitat
15.
What do we call the non-living part of the environment?
a)
Biotic
b)
Population
c)
Abiotic
d)
Antibiotic
16.
What does the direction of the arrow represent in a food chain or energy pyramid?
a)
the flow of energy
b)
which way is north
c)
the expenditure of energy
d)
increase of energy
17.
What does the direction of the arrow represent in a food chain or energy pyramid?
a)
the flow of energy
b)
which way is north
c)
the expenditure of energy
d)
increase of energy
18.
What do we call several different populations interacting in some way?
a)
Population
b)
Community
c)
Ecosystem
d)
Biome
19.
How can abiotic factors change in an ecosystem?
a)
Flooding
b)
Forest fires
c)
drought
d)
All of the above
20.
A wolf eating a lamb is an example of:
a)
Parasitism
b)
Mutualism
c)
Predator/Prey
d)
Commensalism
21.
What do we call organisms that are the "clean up crew?"
a)
Scavengers
b)
Parasites
c)
commensals
d)
Prey
22.
A remora hitches a ride with the shark. It gets a free ride unbeknownst to the shark.
a)
Parasitism
b)
Predation
c)
Commensalism
d)
Mutualism
23.
Your cat has fleas. Fleas suck blood and your kitty gets an infection.
a)
Mutualism
b)
Predation
c)
Commensalism
d)
Parasitiem
24.
Bees pollinating flowers is an example of:
a)
Predation
b)
Commensalism
c)
Mutualism
d)
Parasitism
25.
If one species in an ecosystem is destroyed, what would happen to the other species?
a)
benefit
b)
die
c)
thrown out of balance
d)
are unaffected
26.
What is the species that is usually introduced to an area by accident, but soon take over the indigenous species?
a)
Invasive species
b)
bully
c)
absent species
d)
dominant species
27.
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
28.
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
29.
It is a branch of Biology which deals with the continual interaction of organism with the environment.
a)
ecosphere
b)
biosphere
c)
ecology
d)
ecosytem
30.
Heterotrophs are also called
a)
consumers
b)
herbivores
c)
Omnivore
d)
consumer
31.
Water temperature would be an example of ...
a)
a biotic factor.
b)
an abiotic factor.
32.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
33.
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
34.
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
35.
The role or function or job of a species in a community.
a)
habitat
b)
diet
c)
niche
d)
ecosystem
36.
Two organisms that are so similar they can interbreed in nature and produce fertile offspring.
a)
biotic factor
b)
herbivore
c)
ecosystem
d)
species
37.
Nonliving factor that affects an ecosystem...
a)
biotic factor
b)
abiotic factor
c)
food chain
d)
biome
38.
Living factors or organisms that affect an ecosystem...
a)
abiotic factors
b)
species
c)
trophic level
d)
biotic factors
39.
What are the biotic factors in this image?
a)
sunlight, elephants, and grasses
b)
sunlight, water, and air
c)
elephants, plants, trees
40.
What are the abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
water, plants, and birds
41.
An ecosystem contains living and nonliving things.
a)
True
b)
False
42.
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
43.
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
44.
Put the level of organization in order. Smallest to greatest- Select all that applies
a)
Species
Population
Community
Ecosystem
Biome
Biosphere
b)
Organism
Population
Community
Ecosystem
Biome
Biosphere
c)
molecule
cell
tissue
organ
organ system
organism
d)
molecule
cell
tissue
organ
organ system
organism
population
community
ecosystem
biosphere
45.
An ecosystem contains living and nonliving things.
a)
True
b)
False
46.
According to this food chain what is the third trophic level in the food chain
a)
Grass
b)
Grasshopper
c)
Bluebird
d)
Snake
e)
Owl
47.
What is the Capital of France
a)
Paris
b)
Paree
48.
What do the arrows show?
a)
Flow of energy
b)
Who eats who
c)
Weakest to strongest
d)
Predator Prey
49.
Which symbols best describe mutualism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
50.
Which symbols best describe parasitism?
a)
+,+
b)
+,-
c)
+,0
d)
-,0
51.
Which symbols best describe commensalism?
a)
+,+
b)
+,-
c)
+,0
d)
0,0
52.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
53.
A tapeworm and a cat have this type of relationship.
a)
mutualism
b)
parasitism
c)
commensalism
d)
competition
54.
Cattle egrets are birds that forage in fields among cattle. The egrets get easy access to food and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
55.
Red-billed oxpeckers are birds that feed on parasites found on an impala. The impala gets rid of parasites and the red-billed oxpeckers get a yummy dinner. This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
56.
A relationship between two organisms in which one organism benefits and the other is harmed.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
57.
A relationship between two organisms in which one organism benefits and the other is unharmed.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
58.
A relationship between two organisms in which both organisms benefit.
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
59.
Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.
a)
Mutualsim
b)
Parasitism
c)
Commensalism
60.
Mistletoe extracts water and nutrients from the spruce tree to the tree's detriment (harm).
a)
Mutualsim
b)
Parasitism
c)
Commensalism
61.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit.
a)
Mutualism
b)
Parasitism
c)
Commensalism
62.
A wrasse fish feeds on the parasites found on the black sea bass's body. Both species benefit.
a)
Mutualism
b)
Parasitism
c)
Commensalism
63.
Silverfish live and hunt with army ants. They share the prey. They neither help nor harm the ants.
a)
Mutualism
b)
Parasitism
c)
Commensalism
64.
In a parasitic relationship, one organism is ___________ and one organism is benefiting.
a)
helped
b)
harmed
c)
not effected
d)
happy
65.
In a mutual relationship, both organisms are ________________.
a)
hurt
b)
not effected
c)
harmed
d)
benefiting
66.
Commensalism is where one organism is benefiting and the other organism is _____________________.
a)
not effected
b)
helped
c)
harmed
d)
hurt
67.
1. A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar.
a)
commensal relationship
b)
parasitic relationship
c)
mutual relationship
68.
A dog is harmed by a tick when it sucks the dog’s blood. The tick is benefiting because it is getting nutrients from the dog. This is an example of a ________________.
a)
parasitic relationship
b)
mutual relationship
c)
commensal relationship
69.
When a dog and a tick are in a relationship. The dog is being harmed and the tick is benefiting. The tick is using the dog as it's ____________.
a)
harmer
b)
host
c)
parasite
70.
A clown fish and a sea anemone are in a close relationship. The sea anemone provides shelter and protection for the clown fish. However, the sea anemone is not harmed. This is an example of ______________________.
a)
commensalism
b)
parasitic relationship
c)
mutualism
71.
A tapir and a song bird work together to help each other find food. The tapir follows the sound of the song bird to the tree filled with sap. The tapir has sharp claws and is able to rip open the section of the tree that contains the sap. Without the tapir, the bird would not be able to access the sap for food. This is an example of a _________________ relationship.
a)
mutual
b)
commensal
c)
parasitic
72.
A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse?
a)
a. The tick helps the horse get food.
b)
a. The tick harms the horse by feeding on its blood.
c)
a. The horse harms the tick by feeding on its blood.
d)
The tick does not affect the horse.
73.
A mite lives in the base of the eyelashes of people who use mascara. It feeds on the mascara; it does not seem to harm people. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
74.
A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
75.
A coyote captures, kills, and eats a rabbit. What relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
76.
A close long- term relationship between different species in a community.- Symbiosis
a)
True
b)
False
77.
How does the size of the human population change with time? Choose the best answer.
a)
Tends to increase with time
b)
Tends to grow at an exponential rate
c)
Tends to decrease with time
d)
Tends to stay the same
78.
Select all the reasons why human population grew rapidly from about 500 yrs ago?
a)
Improved sanitation and health care
b)
Industry made life easier and safer
c)
World's food supply became more reliable
d)
Birth rates remained low
79.
Why can't human population grow exponentially forever?
a)
Earth and its resources are limited
b)
Carrying capacity
c)
Limiting factor
80.
What is demography?
a)
The scientific study of human population
b)
Study about hair
c)
Hair treatment
d)
Volcanic activity
81.
What is an ecological pyramid?- It's a diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web.
a)
True
b)
False
82.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
83.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
84.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
85.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
86.
This diagram shows the amount of energy that moves from one feeding level to another in a food web.
a)
Energy Pyramid
b)
Food Web
c)
Ecosystem
d)
Food Chain
87.
an organism that makes its own food
a)
producer
b)
consumer
c)
herbivore
d)
scavenger
88.
an animal that eats both plants and animals
a)
carnivore
b)
herbivore
c)
omnivore
d)
consumer
89.
In an energy pyramid, energy_______ as you move up the pyramid.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Changes up and down
90.
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%
Reset
