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Species Adaptations

7.11BC/.12A ADAPTATIONS OF SPECIES

TermDefinition
PHYSIOLOGY Study of internal and external functions of living systems.
TRAIT Characteristic of an organism; can be genetic or acquired.
POPULATION Group of interacting individuals of the same species located in the same area.
ADAPTATION Process by which a population becomes better suited to its environment by increasing the frequencies of alleles that provide benefits to survival & reproduction.
VARIATION Occurrence of an organism, trait, or gene in more than 1 form.
GENERATION Organisms of the same species that are at the same level of descent from a common ancestor; a parent is a member of 1, & its offspring are members of the next.
NATURAL SELECTION Process in which organisms w/favorable traits produce more successful offspring than organisms w/less favorable traits, causing favorable traits to become more common in the population.
MIGRATION Movement to a different geographical region where conditions are more favorable.
HIBERNATION Slowed physiological state of an organism to survive long periods of cold temperature or reduced food supplies.
SELECTIVE BREEDING Form of artificial selection whereby deliberate breeding results in desired traits in plants or animals.
INHERITED TRAIT Characteristic that is passed from parent to offspring.
ACQUIRED TRAIT Trait that is not in your genes but is picked up from environmental factors.
HYBRID Offspring resulting from the cross of 2 different species or subspecies.
XYLEM Vascular tissue that carries water upward from the roots to every part of a plant.
PHLOEM Vascular tissue that carries food in plants.
STRUCTURAL (PHYSICAL) ADAPTATION Physical feature of an organism's body that has a specific function that contributes to the survival of the organism.
BEHAVIORAL ADAPTATION Something an animal does that helps it survive.
PHYSIOLOGICAL ADAPTATION Internal systematic responses to external stimuli in order to help an organism maintain homeostasis.
Created by: trauberk
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