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There is a strong evolutionary pressure for prey animals to avoid predators through camouflage, and for predators to be able to detect camouflaged prey. There can be a self-perpetuating coevolution, in the shape of an evolutionary arms race, between the perceptive abilities of animals attempting to detect the cryptic animal and the cryptic characteristics of the hiding species.
Attempts to redefine commonly used terms in invasion biology have been difficult because many authors and biologists are particular to a favorite definition (Colautti and MacIsaac 2004). Also, the status and identification of any species as an invader, a weed, or an exotic are "conditioned by cultural and political circumstances." (Robbins 2004)
Other terms in biology refer similarly to various taxa; for example: Fungi are described by their growth patterns: molds, yeasts, mushrooms and dimorphic fungi. Lichens structure is described their growth form: foliose, crustose, fruticose or gelatinous. Bryophytes structure is described as foliose or thallose.
aardvark; aardwolf; aaron; aback; abacus; abaft; abalone; to abandon; abandoned; abandonment; abandons; abase; abased; abasement; abash; abashed; to abate; abated ...
Psychopathy, or psychopathic personality, [1] is a personality construct [2] [3] characterized by impaired empathy and remorse, in combination with traits of boldness, disinhibition, and egocentrism. These traits are often masked by superficial charm and immunity to stress , [ 4 ] which create an outward appearance of apparent normalcy.
Evolution is the change in the heritable characteristics of biological populations over successive generations. [1] [2] It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, resulting in certain characteristics becoming more or less common within a population over successive generations. [3]
The varied definitions either place taxonomy as a sub-area of systematics (definition 2), invert that relationship (definition 6), or appear to consider the two terms synonymous. There is some disagreement as to whether biological nomenclature is considered a part of taxonomy (definitions 1 and 2), or a part of systematics outside taxonomy.
The problem of free will has been identified in ancient Greek philosophical literature. The notion of compatibilist free will has been attributed to both Aristotle (4th century BCE) and Epictetus (1st century CE): "it was the fact that nothing hindered us from doing or choosing something that made us have control over them".