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Behavioral and structural Adaptations. Adaptations. Adaptations are physical features are behaviors that make an organism suited to their environment and increase chances of survival. Structural adaptations include protective coloration, camouflage, and mimicry.
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Adaptations • Adaptations are physical features are behaviors that make an organism suited to their environment and increase chances of survival. • Structural adaptations include protective coloration, camouflage, and mimicry. • Behavioral adaptations include tropisms, as well as cyclic behaviors like dormancy, hibernation, estivation, migration, and nocturnal, diurnal, and crepuscular foraging behaviors
Protective Coloration • Protective coloration (also known as deceptive coloration) is any coloration or pattern on an organism that is concealing, revealing, or deceiving that affords and organism protection in its environment.
Camouflage • Camouflage includes any color or markings that enable and organism to blend in with its environment making it invisible to its predators or prey.
Mimicry • Mimicry is resemblance of one organism to another or to natural objects within its environment that helps ensure its survival.
Tropisms • Tropisms are plant behaviors in response to changes in their environments. A tropism is a growth movement in response to the direction of the stimulus. • Include • Phototropism • Geotropism (gravitotropism) • Thigmotropism • Hydrotropism
Phototropism • Phototropism is a plant response to light. It is the tendency of some plants to grow toward the light.
Geotropism • Geotropism (also known as gravitotropism) is a turning or growth movement in response to gravity. It is the tendency of the roots to grow downward and the shoots to grow upward.
Thigmotropism • Thigmotropism is a movement in response to touch or contact stimuli.
Hydrotropism • Hydrotropism is the growth or turning of plants’ roots toward or away from moisture.
Dormancy • Dormancy is a period of inactivity. • Dormancy is a term often used to describe plants. For example, deciduous trees go through a period of dormancy in the winter when growth and development stops. • Dormancy can be used to describe animal behavior, as well. • There are two types of dormancy in animals: • Estivation • Hibernation
Hibernation • Hibernation is a period of inactivity and decreased body temperature that takes place during cold weather when resources may be scarce. • During hibernation, an animal’s metabolism slows so that it requires less resources.
Estivation • In the summer when resources become scarce due to heat, some animals enter a state of reduced activity called estivation. • Estivation is the summer equivalent of hibernation.
Migration • Migration is the seasonal movement of a population from place to place usually because resources are becoming scarce.
Nocturnal/Diurnal/Crepuscular • Animals may be active during the daytime, the night, or dusk and dawn. • Being active at specific times of the day is another characteristic that ensures distinct niches among organisms. • Animals that are active at night are nocturnal. • Animals that are active during the daytime are diurnal. • Animals that are active at dawn and dusk are crepuscular.
http://www.ck12.org/book/CK-12-Life-Science-Concepts-For-Middle-School/r14/section/8.7/http://www.ck12.org/book/CK-12-Life-Science-Concepts-For-Middle-School/r14/section/8.7/
