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Unit B: Cells and Systems
Topic 1: Living Organisms
A. Functions and Structures
1. Six characteristics that are
common to all
_____________________
organisms:
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a) Organization - Living
_____________ are made
of cells
b) Energy - Living organisms
need _____________
c) Environment - Living
organisms _________ and
adapt to their environment
d) Reproduction - Living
organisms ____________
e) Growth - Living organisms
grow and _____________
f) Wastes - Living organisms
______________ wastes
B. Levels of Organization
in Organisms
1. Organisms have
____________ which
perform the functions
that keep that organism
alive
2. Systems are made up of
____________
3. Organs are made from
____________
4. Tissues are composed of
____________
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5. The Cell
a) The cell is the
___________ unit of
life.
b) It can perform all the
_____________ that
allow life to happen.
c) All organisms are
made up of at least
___ cell and every cell
comes from another
cell.
C. Cells Working Together
1. The cells of an organism
all work together to help
perform the various
____________ that need
to occur if the organism is
to live.
2. The specialized cells of
the body perform tasks
that enable the organism
to ________ despite the
actions and/or habits it is
involved in on a daily basis.
3. For examples, read about
the pika and seabird on
page 102.
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