external challenges to the internal homeostatic
environment. If no homeokinetic mechanisms acted,
internal environment would "resemble" "external"
environment and life would "cease".
A. c limatic fac tors
B. topographic fac tors
"Adaptive in and by nature"
diversions cause less information to be processed
Crucial role of attention
- results in less learning
- focus/ concentration
record of behavior patterns
cary coded information to the CNS
brainstem, cerebellum and cerebrum
Brainstem has three parts:
medulla or hindbrain, pons and midbrain
Central Nervous System (CNS)
Brain + spinal cord
Cerebellum is an outgrowth of the
any functional, structural or behavioral change that
favors an animal's survival and/or reproduction in
a given environment (extreme or adverse)
An adaptation may result from
An adaptation may result from any of the
environmental stimuli previo
Animals hear the noises of
Animals hear the noises of "weather" as well as an
approaching "predator", thereby gaining valuable
information about its environment.
The avian eye is
The avian eye is shaped to give high visual acuity
through a field of about