WorksheetsEcology
Total questions: 41
Worksheet time: 35mins
Name
Class
Date
1.
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
2.
An area where an organism finds food, shelter and water in a specific arrangement
a)
niche
b)
biosphere
c)
biome
d)
habitat
3.
The living part of an ecosystem
a)
Biotic
b)
Abiotic
c)
Mother Earth
d)
Flowers
4.
The non-living part of an ecosystem
a)
Ocean
b)
Lava Flow
c)
Birds
d)
Abiotic
5.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
6.
Organisms that look similar and can produce fertile offspring
a)
Species
b)
Fish
c)
Community
d)
Trees
7.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
8.
Different populations living and interacting with each other in the same area
a)
Biome
b)
Ecosystem
c)
Community
d)
Niche
9.
Which of the following would be the definition of a detritivore?
a)
Animals that eat insects.
b)
Organisms that feed on rocks, recycling the nutrients back into the ground.
c)
Organisms that eat only pants
d)
Things that feed on dead organisms, recycling the nutrients back into the ground.
10.
The amount of energy that usually transfers from one trophic level to the next...
a)
10%
b)
20%
c)
80%
d)
50%
11.
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.
12.
A living relationship between two species in which one organism is harmed is called...
a)
mutualism
b)
commensalism
c)
parasitism
d)
niche
13.
symbiotic relationship in which both organisms benefit
a)
competition
b)
Mutualism
c)
nitrogen fixation
d)
energy pyramid
14.
The role of an organism in its environment.
a)
habitat
b)
niche
c)
community
d)
species
15.
Similar ecosystems on earth together.
a)
Ecosystem
b)
Biome
c)
Biosphere
d)
Population
16.
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
17.
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
18.
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
19.
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
20.
Which of the following organisms is a herbivore.
a)
butterfly
b)
snake
c)
fox
d)
ladybird
21.
What type of consumer is the impala?
a)
herbivore
b)
omnivore
c)
carnivore
22.
They caracal is prey to which animal?
a)
snake
b)
mouse
c)
grasshopper
d)
baboon
23.
What might happen if you remove a primary consumer from the ecosystem?
a)
There would be more food for secondary consumers.
b)
The number of primary consumers would increase.
c)
The number of plants would increase.
d)
The number of secondary consumers would increase.
24.
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.
25.
In this energy pyramid, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
26.
In this ecological pyramid which type of consumer gets only 10% of the energy stored in plants?
a)
Primary Consumers
b)
Tertiary Consumer
c)
Secondary Consumers
d)
Primary Producers
27.
What type of pyramid does this show?
a)
biomass
b)
energy
c)
numbers
d)
producers
28.
What does a biomass pyramid compare?
a)
the amount of biomass at each trophic level
b)
the amount of energy available at each trophic level
c)
the amount of biomass consumed at each trophic level
d)
the amount of individuals at each trophic level
29.
What does NOT produce atmospheric carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Anything living in the ocean.
30.
The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
a)
lower levels of ozone in the atmosphere
b)
lower levels of nitrogen in the atmosphere
c)
higher levels of carbon dioxide and other greenhouse gases in the atmosphere
d)
higher levels of oxygen in the atmosphere
31.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
32.
The main human activity that releases greenhouse gases is
a)
using bottled water
b)
burning fossil fuels
c)
texting on cellphones
d)
eating meat
33.
The y-axis shows
a)
time
b)
carbon dioxide concentration
c)
Mauna Loa volcano
d)
science
34.
What converts nitrogen gas into a usable form for plants and animals?
a)
bacteria
b)
rain
c)
fungi
d)
car exhaust
35.
How do animals get the nitrogen they need?
a)
From the air they breathe
b)
From the water they drink
c)
From the food they eat
d)
From the sun
36.
What is the process of combining nitrogen gas with other elements to make nitrogen into usable compounds?
a)
nitrogen composition
b)
nitrogen fixation
c)
ammonia
d)
denitrification
37.
What process occurs when dead plant and animal matter decomposes and nitrogen is released back into the atmosphere?
a)
Assimilation
b)
Fixation
c)
Ammonification
d)
Denitrification
38.
Snow, hail, and rain are all examples of ________________.
a)
evaporation
b)
condensation
c)
accumulation
d)
precipitation
39.
Which stage does the #2 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
40.
This is NOT a part of the phosphorus cycle.
a)
Phosphate is incorporated into sedimentary rocks
b)
Phosphate bound to soil
c)
Atmospheric phosphate
d)
Phosphate is absorbed from the soil by plants
41.
Which of the following statements is true of the phosphorus cycle?
a)
Phosphorus enters the atmosphere as phosphates.
b)
The phosphorus cycle utilizes the processes of erosion, and weathering.
c)
Phosphates are used in carbohydrate and glucose storage.
d)
The phosphorus cycle utilizes bacteria to breakdown phosphates and make them available for plants.
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