Unit B Chapter 2
Living Things Interact
Review
A single organism living in an
environment is?
Individual
All the populations of organisms
living together in an environment
are?
Communities
True or False
Some animals
eat off of
more than
one
consumer
level.
True
Living things that must eat to
gain energy are?
Consumers
What shows the relationship
between many different food chains
in one ecosystem?
Food Web
True or False
Human activity can cause a decline
in populations of organisms.
True
What shows how consumers in an
ecosystem are connected to each
other based on what they eat?
Food Chain
Consumers that break down
decaying tissue.
Decomposer
True or False
Instinctive behaviors include
building shelter, finding mates, and
hunting.
True
A non-native
organism
Exotic
True or False
Hurricanes and floods are
examples of natural causes for
population decline.
True
A community and its physical
environment would be known as an
___________.
ecosystem
True or False
Only 10% of the energy from one
level of the energy pyramid will be
passed on to the next level.
True
A long term
relationship
between
different kinds
of organisms.
Symbiosis
Place in an ecosystem where
each population lives.
Habitat
True or False
In a relationship of mutualism, two
organisms work together while only
one benefits.
False
BOTH organisms benefit in mutualism!
Organisms that
produce their own
food through
photosynthesis.
Producers
True or False
Pesticides are a natural cause for
population decline.
False
Individuals of the same kind
living in the same environment.
Population
True or False
It is not possible for animals to
eat from the same food source
without competing.
False