Biology AHSGE

Standard XII- Animal Adaptations

Standard XII- Animal Adaptations CONTENT STANDARD 12. Describe protective adaptations

of animals, including mimicry, camouflage, beak type, migration, and hibernation.

ELIGIBLE CONTENTA. Recognize and apply the definition of mimicry. (The

resemblance of one organism to another or to an object in its surroundings for concealment and protection from predators.)

B. Recognize and apply the definition of camouflage. (The method or result of concealing by disguise or protective coloration such that the organism appears to be part of the natural surroundings.)

C. Distinguish between different beak types, and identify what each type is used for.

D. Recognize and apply the definition of migration. (The process of changing location periodically, especially by moving seasonally from one region to another.)

E. Recognize and apply the definition of hibernation. (The process of passing winter in an inactive or dormant state.)

Evolution Changes in an organism over time known to occur

due to fossils Adaptation- Evolution of a structural, internal or

behavioral feature to better suit the organism for survival Results from a change in the environment

Theory of Natural Selection Survival of the fittest Causes a change in the gene pool Unfit genes die out or are bred out

Structural Adaptations Mimicry- Copying of the appearance of other

organisms for protection or other advantages Protective resemblance- Normally resembles plant structures

Camouflage- Body color blends in with surroundings

Spots and stripes break up body pattern

Warning Coloration- Bright coloration to warn of danger

Mechanical Defenses- Physical covering that allows for defending from predators or to aid in predation

Ex: Claws, sharp teeth, quills, shells, etc.

Structural Adaptations

Protective Resemblance

Mimicry/Warning Coloration

Camouflage

Adaptations Charles Darwin

Father of evolution Developed theory of natural selection Traveled on the H.M.S. Beagle to the

Galapogos Islands Studied finches and beak size and shape Beaks of birds are adaptations for food type

Bird Beak Adaptations

Bird Feet Adaptations

Bird Wing Adaptations

Penguin wing adapted for swimming

Behavioral Adaptations Migration- Movement of an animal from

one place to another Common in birds and grazing mammals Brought on by climate change

Hibernation- Period of dormancy during certain time-periods Common in reptiles and mammals of cold

climates Brought on by climate change

Behavioral Adaptations

Behavioral Adaptations

Internal Adaptations Chemical defenses

Development of mucus glands- secrete mucus for protection

Toxin/Venom development