WorksheetsEcology
Total questions: 30
Worksheet time: 42mins
Name
Class
Date
1.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
2.
What does every food chain start with? (Even if it's not drawn or written there!)
a)
producers
b)
sun
c)
consumer
d)
decomposers
3.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
4.
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
5.
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
6.
As you move upward, from level to level, in an energy pyramid, energy _____.
a)
increases
b)
decreases
c)
stays the same
d)
increases exponentially
7.
What are the Abiotic factors in this image?
a)
water, sunlight, dirt, air
b)
birds and plants
c)
birds, water, dirt
d)
plants, water
8.
The diagram below depicts the water cycle. Which process is represented by the number 2?
a)
precipitation
b)
evaporation
c)
surface runoff
d)
condensation
9.
An increase in the atmospheric levels of carbon dioxide (CO2) is the biggest contributor to which of the following?
a)
El Nino
b)
global warming
c)
wind storms
d)
ozone depletion
10.
A __________ is a group of organisms that can reproduce fertile offspring. Failure to reproduce fertile offspring will cause __________ of the group.
a)
genus, evolution
b)
species, extinction
c)
phylum, extinction
d)
species, evolution
11.
The graph below shows population data for two species. What can be said about the relationship between species 1 and species 2?
a)
When the population of species 1 increases, the population of species 2 decreases.
b)
The population of species 1 and species 2 stay the same over the time period shown.
c)
The population of species 1 is not influenced by the population of species 2.
d)
When the population of species 1 increases, the population of species 2 increases.
12.
Overpopulation occurs when a population exceeds its carrying capacity. White-tailed deer are considered to be an overpopulated species in the central United States. What is one consequence of white-tailed deer exceeding their carrying capacity?
a)
People don't see deer as often in urban areas.
b)
The deer are less healthy and more prone to disease.
c)
There are more predators to eat the deer.
d)
The deer have stopped breeding.
13.
Grazing cows disturb the grass and cause insects to fly around the cows as they eat. In turn, birds swoop in and eat the insects. This type of feeding relationship is an example of
a)
commensalism.
b)
mutualism.
c)
parasitism.
d)
predation.
14.
Which organisms convert Nitrogen in the atmosphere to a usable for for plants and animals?
a)
Plants
b)
Animals
c)
Bacteria
d)
Converters
15.
Which species will have the largest population?
a)
Hawks
b)
Snakes
c)
Rabbits
d)
Grass
16.
Decomposers...
a)
Recycle nutrients in the ecosystem.
b)
Provide most of the Earth's energy.
c)
Can be considered producers because they grow in the ground.
d)
Are mostly Abiotic.
17.
A relationship in which both species benefit is called...
a)
Parasitism
b)
Commensalism
c)
Mutualism
18.
Limiting factors ...
a)
are resources that are in short supply and limit the size of a population.
b)
are a cause of too much nitrogen in the water.
c)
are hosts for parasites.
d)
only found in the jungle.
19.
Which of the following is the correct equation for PHOTOSYNTHESIS?
a)
CO2 + light + H2O --> O2 + Sugar
b)
CO2 + sugar + H2O --> O2 + light
c)
O2 + light + H2O --> CO2 + Sugar
d)
CO2 + O2 + H2O --> Light+ Sugar
20.
A third-level consumer has to be which type?
a)
Carnviore.
b)
Decomposer.
c)
Producer.
d)
Herbivore.
21.
What factor describes when populations decrease because animals are moving out of a population?
a)
Emigration
b)
Limiting Factors
c)
Immigration
d)
Exponential Growth
22.
Place the levels of organization in the correct order from smallest to largest.
a)
Biosphere, Ecosystem, Community, Population, Organism, Organ System, Organ, Tissue, Cell, Organelle, Molecule, and Atom
b)
Atom, Molecule, Organelle, Cell, Tissue, Organ, Organ System, Organism, Population, Community, Ecosystem, and Biosphere
23.
The study of how living things interact with their environment and abiotic factors is the study of ____________________.
a)
Astrology
b)
Microbiology
c)
Ecology
d)
Geology
24.
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
25.
What is the role of fungi in food webs?
a)
scavenger
b)
bacteria
c)
producer
d)
decomposer
26.
Two or more members of a particular species living and interacting in the same area
a)
Community
b)
Population
c)
Organisms
d)
Biosphere
27.
Which of the following is NOT a stage of the nitrogen cycle?
a)
organisms breathe in nitrogen gas
b)
organisms release nitrogen compounds via waste or decomposition
c)
bacteria convert unusable nitrogen to usable nitrogen
d)
plants absorb nitrogen compounds from the soil
28.
Which of the following is NOT part of the carbon cycle?
a)
condensation
b)
photosynthesis
c)
combustion
d)
respiration
29.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
30.
How much energy is passed on to each trophic level in an energy pyramid?
a)
10%
b)
90%
c)
50%
d)
80%
100 %
