Adaptation, in biology, the process by which a species becomes fitted to its environment; it is the result of natural selection’s acting upon heritable variation over several generations. Organisms are adapted to their environments in a variety of ways, such as in their structure, physiology, and genetics.
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Examples of Adaptation in a sentence. This adaptation of the novel was written so the story could be performed as a play. 🔊 As a diehard fan of the book, I do not feel the movie adaptation will be able to capture the real story. 🔊 The ability to change colors is a biological adaptation that allows the chameleon to blend into its ...
adaptation meaning: 1. the process of changing to suit different conditions: 2. the process in which a living thing…. Learn more.
Adaptation. Things change. As humans, we must also change. Adaptation refers to an individual's ability to adjust to changes and new experiences, and to accept new information. The ability to adapt helps us grow mentally and continually develop.
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Adaptation definition, the act of adapting. See more.
- Adaptations in Kangaroo Rat: a. The kangaroo rat in North American deserts is capable of meeting all its water requirement by internal oxidation of fat (water is a byproduct) in absence of water.
- Adaptations in Desert Plants: ADVERTISEMENTS: (Xerophytic Plants) a. Roots grow very deeply to explore any possibility of available underground water. Proline is a typical osmolyte, synthesised by plants under different environmental stress conditions in xerophytes.
- Adaptations in Mammals: ADVERTISEMENTS: a. Mammals from colder climates generally have shorter ears and limbs to minimise heat loss. This is called Allen’s rule.
- Adaptations at High Altitudes in Humans: ADVERTISEMENTS: a. At high altitude places like Rohtang Pass near Manali (> 3500 m) and Mansarovar (in China occupied Tibet) people suffer from altitude sickness.
Examples of aquatic adaptation. Fins and flippers on various types of fish and aquatic mammals have evolved as adaptations to better survive in water. Likewise, the interdigital membranes of amphibians and birds (the webbing between their ‘toes’) have the same adaptive purpose. Examples of light based adaptation
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Humans have biological plasticity, or an ability to adapt biologically to our environment. An adaptation is any variation that can increase one’s biological fitness in a specific environment; more simply it is the successful interaction of a population with its environment. Adaptations may be biological or cultural in nature. Biological adaptations vary in their length of time, anywhere from a few seconds for a reflex to a lifetime for developmental acclimatization or genetics. The biological changes that occur within an individual’s lifetime are also referred to as functional adaptations. What type of adaptation is activated often depends on the severity and duration of stressorsin the environment. A stressor is anything that disrupts homeostasis, which is a “condition of balance, or stability, within a biological system…” (Jurmain et al 2013: 322). Stressors can be abiotic, e.g., climate or high altitude, biotic, e.g., disease, or social, e.g., war and psychological stress. Cultur...
Click on this link to watch a fantastic video explaining the interplay of skin color, UV, and vitamin D.
Technically, a race is a biologically classifiable subspecies. So, when we are asking, “Do human races exist?”, what we’re really asking is, “Are there biologically classifiable subspecies in humans?”. Here’s the American Anthropological Association’s statement on race and the American Association of Physical Anthropologists statement on race. What are they saying? Basically: 1. race is an arbitrary categorization, races are not biologically distinct groups (in other words, race is a cultural construct, not a biological one) 2. while groups of people who have lived together for a long time may have some alleles in common (for example, those that code for skin color or hair color), there is more genetic variation within races than there is between races 3. the concept of race has historically been a tool that some people use to subjugate others Further explore the concept of race, its history, and human variation.
Jurmain R, Kilgore L, Trevathan W. Essentials of physical anthropology, 4th edition. Belmont (CA): Wadsworth, Cengage Learning; 2013. 437 p. Larsen CS. Our origins: discovering physical anthropology. New York (NY): W.W Norton& Company, Inc.; 2008. 430 p. O’Neil D. Human biological adaptability: an introduction to human responses to common environmental stresses [Internet]. c1998-2013; [cited 2015 June 1]. Available from . Yoshida-Levine B. Human variation and adaptation [Internet]. El Cajon (CA): Grossmont College; c2015 [cited 2015 June 1]. Available from .
Sensory adaptation is a phenomenon that occurs when the sensory receptors become exposed to stimuli for a prolonged period. Depending on the stimulus, receptors may increase or decrease their ability to respond, and will develop an enhanced or diminished sensitivity to the stimulus.