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machines inside cells and the metabolic pathways that cycle carbon through the biosphere, to the process of evolution, which has
shaped the living world that surrounds and includes us. The four Big Ideas are fundamental to understanding and organizing such
diverse aspects of biology.
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The Four Big Ideas of AP® Biology

Evolution Ener getics
getics
Ener
Energetics considers the processes
ganisms t
tt
ells and or
o e
er and
change ma
x
y c
used b
used by cells and organisms to exchange matter and
energy with their environment. For example, Canada
lynx and showshoe hares acquire, store, and use the
energy and matter obtained from the environment
to maintain homeostasis, grow, and reproduce.
fPo

Information Storage
Systems Interactions

and Transmission explores
xplor
es
e
how information is stored, used, and transmitted by cells
ho w inf or ma tion is st or ed , used , and tr ansmitt ed b y c ells
tion st
sing inf
or
ma
or
and or
and organisms. Using information stored in DNA and
. U
ed in DNA and
ganisms
thr ough e xper ienc e , the C anada lynx k no w s ho w t o hun t
through experience, the Canada lynx knows how to hunt
its pr ey and the sno w shoe har e k no w s ho w t o ev ade its
its prey and the snowshoe hare knows how to evade its
pr
predator. These behaviors are transmitted to offspring
ansmitt
spr
ing
ed t
o off
hese beha
or
.
T
t
e tr
eda
viors ar
through DNA and through the process of learning.
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