WorksheetsES Community Ecology
Total questions: 21
Worksheet time: 11mins
Name
Class
Date
1.
The process by which plants, algae, and some bacteria use light, CO2, and H20 to produce carbohydrates & O2.
a)
cellular respiration
b)
photosynthesis
c)
chemosynthesis
2.
Any organism that uses inorganic molecules to make organic molecules for energy.
a)
heterotroph
b)
producer
c)
consumer
3.
Which of these is NOT an autotroph?
a)
bear
b)
tree
c)
algae
4.
Any organism that must eat other organisms in order to survive.
a)
producer
b)
autotroph
c)
consumer
5.
Which of these is considered a heterotroph?
a)
grasshopper
b)
tree
c)
grass
6.
An organism that eats both plants and animals
a)
herbivore
b)
carnivore
c)
omnivore
7.
This process breaks down food to provide energy to an organism.
a)
photosynthesis
b)
chemosynthesis
c)
cellular respiration
8.
A diagram that shows many possible feeding relationships in an ecosystem.
a)
food chain
b)
food web
c)
food pyramid
9.
One of the steps in a food chain or food pyramid
a)
trophic level
b)
food level
c)
energy level
10.
The percent of energy that is passed from one trophic level to another (the rest is lost as heat).
a)
10%
b)
90%
c)
100%
11.
The type of interaction in which multiple organisms seek the same limited resources.
a)
predation
b)
mutualism
c)
competition
12.
Interaction in which individuals of one species hunts and consumes individuals of another species.
a)
predation
b)
mutualism
c)
parasitism
13.
Interaction in which one organism depends on another for nourishment.
a)
predation
b)
parasitism
c)
mutualism
14.
In this type of interaction two or more species benefit from interacting with one another.
a)
parasitism
b)
mutualism
c)
competition
15.
Which of the follow is a species that exerts a greater influence than any other species in a community?
a)
keystone
b)
predator
c)
prey
16.
An ecological process in which top-level predators (like wolves) keep lower-level species (like deer) in check?
a)
trophic cascade
b)
trophic level
c)
food cascade
17.
Which of the following is an example of secondary succession?
a)
new islands created by volcanic eruption
b)
areas exposed when a glacier retreats
c)
regrowth after wildfire in California
18.
Which type of succession occurs on a surface where no ecosystem has existed before?
a)
primary
b)
secondary
c)
tertiary
19.
A pioneer species is one that colonizes an uninhabited area. Which of the following is a pioneer species?
a)
lichen
b)
trees
c)
grass
20.
The final, stable community in balance with the environment is a ________?
a)
climax community
b)
perfect community
c)
pioneer community
21.
Type of species that is not native to an area, but thrives due to a lack of limiting resources.
a)
introduced species
b)
invasive species
c)
unusual species
100 %
