7th Grade
Chapter 18 Section 2/3
An organisms that gets energy by
breaking down the remains of dead
organisms.
Decomposers
The main producer in the ocean is...
Algae
Consumers who eat a variety of
organisms, including plants and
animals.
Omnivores
A consumer that eats plants.
Herbivore
An animal that feeds on the bodies of
dead organisms.
Scavenger
Organisms that use sunlight directly to The main producer in most ecosystems
make food are called...
is...
Producers
Grass
Organisms that eat producers or other
organisms for energy.
A consumer that eats animals.
Consumers
Carnivore
Decomposers extract the last bit of
energy from dead organisms and
produce simpler materials, such as
these 2 things...
Decomposers extract the last bit of
energy from dead organisms, this
energy was stored in the dead animalʼs
______________.
Water and Carbon Dioxide
Tissues
Name 2 examples of Decomposers.
Bacteria and Fungi
A diagram that shows the many
different ways energy can flow
between organisms is called a...
Food Web
The peak of an energy pyramid
represents which organisms in an
ecosystem?
Scavengers
Decomposers are an essential part of
any ecosystem because they are...
Natureʼs Recyclers
A diagram that displays the loss of
energy at each level of the food chain.
Energy Pyramid
Food Chain
The base of an energy pyramid
represents which organisms in an
ecosystem?
Producers
When two or more individuals or
When resources become too scarce
populations try to use the same limited due to large populations, that resource
resource.
is said to be a ...
Competition
The largest population that a given
A close, long-term association between
environment can support over a long
two or more species.
period of time.
Carrying Capacity
A diagram that displays the one way
energy can flow from one organism to
the next is called a...
Symbiosis
Limiting Factor
What is the purpose of warning
coloration?
To warn the predators that it sprays
a poison
Symbiotic relationship where both
organisms benefit.
Mutualism
A symbiotic relationship in which one
organism benefits and the other is
unaffected.
A symbiotic association in which one
organism benefits while the other is
harmed.
Commensalism
Parasitism
A long term change that takes place in
Barnacles attach themselves to the
two species because of their close shells of crabs. The barnacles receive a
interactions with one another.
home and transportation. Name the
symbiotic relationship.
Coevolution
Commensalism
Small mites live on your skin, eating
dead skin cells. Name the symbiotic
relationship.
Commensalism
Tapeworms live in the intestines of cats
where they absorb nutrients from the
food cats eat. Name the symbiotic
relationship.
Organisms can be divided into three
groups based on how they obtain
energy. What are the three groups?
A beneficial association between coral
and algae is an example of...
Parasitism
Producers, Consumers,
Decomposers
Remoras and sharks have a
relationship best described as
The environment in which an
organisms lives.
An organismʼs way of life within an
ecosystem.
Commensalism
Habitat
Nitche
Mutualism