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WorksheetsUnit 10 Ecology
Total questions: 48
Worksheet time: 28mins
Name
Class
Date
1.
An individual belonging to a specific species
a)
Biotic
b)
Community
c)
Organism
d)
Reptile
2.
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
3.
An area where an organism finds food, shelter and water in a specific arrangement
a)
niche
b)
biosphere
c)
biome
d)
habitat
4.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
5.
The non-living part of an ecosystem
a)
Ocean
b)
Lava Flow
c)
Birds
d)
Abiotic
6.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
7.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
8.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
9.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
10.
The area between the highest mountain and the deepest ocean where life can be found
a)
Biosphere
b)
Biome
c)
Farm
d)
Ecosystem
11.
What does every food chain start with? (Even if it's not drawn or written there!)
a)
producers
b)
sun
c)
consumer
d)
decomposers
12.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
13.
Consumer that eats plants
a)
heterotroph
b)
herbivore
c)
producer
d)
community
14.
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.
15.
relationship in which two species live closely together
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
16.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
17.
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
18.
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
19.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
20.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
21.
A graphic illustration that shows each trophic level and the amount of useable energy contained within.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
All of these
22.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
23.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
24.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
25.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
26.
Which of the following is NOT important cycle of matter in the environment?
a)
helium cycle
b)
water cycle
c)
carbon cycle
d)
nitrogen cycle
27.
A local company dumped sewage into the wetlands. As a result, most fish in the wetlands died. This decrease in the number of fish will probably result in
a)
fewer mice
b)
fewer birds
c)
fewer spiders
d)
fewer insects
28.
Sometimes a population cannot grow to its biotic potential due to environmental factors. What are these environmental factors called?
a)
limiting factors
b)
biomes
c)
ecological pyramids
d)
carrying capasity
29.
An organism's specific role in its habitat is called its
a)
consumer
b)
niche
c)
birth right
d)
mutalism
30.
How would the removal of the earth worms affect the other organisms.
a)
The number of bass will increase
b)
The number of crayfish will decrease
c)
The crayfish will get their energy directly from the sun
d)
The number of bass and ospreys will increase
31.
What does the graph represent?
a)
Emigration
b)
Exponential growth
c)
Immigration
d)
Logistic Growth
32.
Which limiting factor would increase due to the number of individuals in a population?
a)
Unusual weather
b)
Natural disaster
c)
Births
d)
Disease
33.
Which limiting factor is independent of the number of individuals in a population?
a)
competition
b)
parasitism/disease
c)
stress
d)
natural disasters
34.
True or False: Limiting factors can be population dependent and population independent.
a)
True/Cierto
b)
False/Falso
35.
What point on the graph represents the carrying capacity?
a)
A
b)
B
c)
C
d)
D
36.
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
37.
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
38.
Which factor is a density-dependent limiting factor on the population of a species?
a)
seasonal variation
b)
natural disasters
c)
unusual weather
d)
predation
39.
No two species can occupy the same niche
a)
Competitive Exclusion Principle
b)
Limiting Exclusion Theory
c)
Competitive Limiting Principle
d)
Limiting Competitive Theory
40.
What is happening at the 'A' on the graph?
a)
the population overshoots above the carrying capacity
b)
the population stops growing
c)
growth begins to slow down due to limited resources
d)
growth is speeding up due to an abundance of resources
41.
What point on the graph does the population slow down tremendously due to limiting resources as it approaches the carrying capacity?
a)
A
b)
B
c)
C
d)
D
42.
Which of the following is TRUE of predator/prey relationships?
a)
The amount of prey does not affect the number of predators.
b)
Herbivores are limited by the number of prey in an ecosystem.
c)
Humans are not considered predators.
d)
The number of predators is determined by available prey.
43.
The number of individuals per unit area within an ecosystem.
a)
Population Size
b)
Population Growth
c)
Population Density
d)
Population Limitation
44.
Factors within an ecosystem which decreases the growth within a population
a)
Limiting Factor
b)
Succession
c)
Logistic Factor
d)
Competitive Exclusion
45.
Limiting factors which impact the size of a population no matter how large that population is
a)
Density Independent Limiting Factors
b)
Density Dependent Limiting Factors
46.
Boom and bust cycles, where populations will grow and shrink over and over, are usually caused by...
a)
Predator-Prey Relationships
b)
Parasite-Host relationships
c)
Extinction
d)
None of these
47.
What is the carrying capacity of the following graph?
a)
1000
b)
8000
c)
800
d)
600
48.
One reason predators might increase is
a)
The weather is warmer
b)
Parasites have increased
c)
The prey have increased
d)
Food has decreased
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