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WorksheetsEcosystems
Total questions: 21
Worksheet time: 13mins
Name
Class
Date
1.
A single organism in an environment is called an ______________.
a)
Population
b)
Group
c)
Individual
d)
Community
2.
Organisms of the same kind living in the same environment make up a ___________.
a)
Niche
b)
Population
c)
Habitat
d)
Ecosystem
3.
All the populations of organisms living together in an environment make up a ____________.
a)
Niche
b)
Colony
c)
Community
d)
Producer
4.
The _________ provides the energy for almost every ecosystem on Earth.
a)
Sun
b)
Easter Bunny
c)
Consumers
d)
Water
5.
Within the ecosystem, each population has a certain role, or __________.
a)
Party
b)
Niche
c)
Competition
d)
bedtime
6.
Because most ecosystems don't have unlimited resources, there may be ________ for these resources among organisms.
a)
Hugging wars
b)
Competition
c)
Play dates
7.
In some cases, different organisms live together for most or all of their lives. A long relationship between different kinds of organisms is called _____________.
a)
Extinct
b)
Dating
c)
Symbiosis
d)
Marriage
8.
An inherited behavior is called an _________.
a)
Extinct
b)
Instinct
c)
Learned Behavior
d)
Symbiosis
9.
A behavior that is developed over time is called _______ _________.
a)
Learned behavior
b)
Exotic behavior
c)
Instinct
10.
A population that is beginning to decline is listed as ____________.
a)
Cool
b)
Threatened
c)
Endangered
d)
Exotic
11.
A population that is likely to die out unless steps are taken to save it is listed as _________.
a)
Lame
b)
Endangered
c)
Exotic
d)
Extinct
12.
An animal that is not originally from here is known as __________.
a)
Extinct
b)
Threatened
c)
Exotic
d)
Chinese
13.
When the last individual of a population dies, that kind of organism becomes ___________.
a)
Lame
b)
Symbiosis
c)
Competition
d)
Extinct
14.
In a healthy ecosystem, populations of living things are _________.
a)
Independent
b)
Enemies
c)
Interdependent
d)
Large
15.
The types and numbers of animals in an ecosystem are determined by the __________.
a)
Things they eat for dinner
b)
Types and numbers of plants
c)
Types and numbers of communities
d)
Population density
16.
What do the producers in a community do?
a)
Hunt prey
b)
Eat other organisms
c)
Make food
d)
Decompose organisms
17.
In a food chain, each level of consumer eats organisms ___________
a)
From the level above it
b)
From the level below it
c)
In the same niche
d)
In the same population
18.
What percentage of energy at any level of a food chain is passed?
a)
About 10 percent
b)
About 90 percent
c)
It depends on Mrs. Cole's mood
d)
It depends on the population
19.
Different organisms can share the same resources, such as a tree, because they have different ____________.
a)
Niches
b)
Populations
c)
Ecosystems
d)
Communities
20.
A cleaner fish picks bits of food from between a shark's teeth. This relationship is an example of __________.
a)
Competition
b)
Camouflage
c)
Independence
d)
Mutualism
21.
Behaviors for building shelters, finding mates, and hunting are usually _______.
a)
Learned
b)
Competition
c)
Instinct
d)
Symbiotic
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