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An adaptation is any structural, physiological or behavioural trait that an organism's in its Genetic fitness means an its chance of and organism has adaptations or traits that in a specific environment. Plants and animals struggle: For nutrients . For water For protection against weather • Against being eaten by predators Against disease . For space To reproduce How do adaptations help organisms survive? Well adapted organisms can cope better with extremes of weather. Adaptations can for food. The adaptions might allow from predators. Overall, well adapted organisms are more likely to survive in their habitat and produce offspring.

An adaptation is any structural, physiological or behavioural trait that an organism's in its Genetic fitness means an its chance of and organism has adaptations or traits that in a specific environment. Plants and animals struggle: For nutrients . For water For protection against weather • Against being eaten by predators Against disease . For space To reproduce How do adaptations help organisms survive? Well adapted organisms can cope better with extremes of weather. Adaptations can for food. The adaptions might allow from predators. Overall, well adapted organisms are more likely to survive in their habitat and produce offspring.

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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An adaptation is any structural, physiological or behavioural trait that an organism's in its Genetic fitness means an its chance of and organism has adaptations or traits that, in a specific environment. Plants and animals struggle: For nutrients . For water For protection against weather Against being eaten by predators . Against disease . For space • To reproduce How do adaptations help organisms survive? Well adapted organisms can cope better with extremes of weather. Adaptations can_______ for food. The adaptions might allow from predators. Overall, well adapted organisms are more likely to survive in their habitat and produce offspring. How do adaptations arise? Organisms become adapted to their immediate environment over a period of time through the process of The characteristics that are or changes in best adapted to the environment are selected for. Genetic DNA can introduce more, in a species. Evolution of Complex Adaptations Complex adaptations, such as the change from a simple to a complex eye, evolved over time as a result of a series of adaptive changes. The adaptations in the organisms living today are the result of natural selection acting on genetic variations that arose at particular times in history. There are three types of adaptations, structural, physiological and behavioural. 1. Structural Adaptations Anatomical changes 1. The first type of structural adaptations are, in the or arrangement of particular features either or can improve survival. Ex. Arrangement of teeth, shape of fins or beaks, long digestive tract of herbivores 2. A second structural adaptation is, which allows one species to resemble another species that might be dangerous to a predator. 3. Thirdly, makes potential prey difficult to spot. Ex. A ea horse called a sea dragon looks like the algae in which it lives Two Categories of Structural Adaptations A. Homologous structures - similarity in structure due to evolutionary dependent on origin, function. Ex. vertebrate forearms: Homology and analogy Homology Bat wing Human arm human hand, bat wing, whale fin, cat leg. Mouse foreimb B. Analogous structures - similarity in structure based on O Analogy for the Batwing Butterfly wing Bird wing not on common evolutionary origin. Ex. wings have developed independently in insects, reptiles, birds, and bats for the function of flying 2. Physiological Adaptations Physiological adaptations are associated with changes in the inside organisms Ex. enzymes for blood clotting, chemical defenses of plants, silk for spider webs 3. Behavioural Adaptations Behavioural adaptations are associated with how organisms Ex: migrations, courtship, foraging behaviour, response of plants towards light Extinction and Adaptations A species is extinct when the species has from our Earth. Extinction frequently occurs when the, or habitat undergoes some that the species can not adapt to. Ex. Climate change or human predation
Transcribed Image Text:An adaptation is any structural, physiological or behavioural trait that an organism's in its Genetic fitness means an its chance of and organism has adaptations or traits that, in a specific environment. Plants and animals struggle: For nutrients . For water For protection against weather Against being eaten by predators . Against disease . For space • To reproduce How do adaptations help organisms survive? Well adapted organisms can cope better with extremes of weather. Adaptations can_______ for food. The adaptions might allow from predators. Overall, well adapted organisms are more likely to survive in their habitat and produce offspring. How do adaptations arise? Organisms become adapted to their immediate environment over a period of time through the process of The characteristics that are or changes in best adapted to the environment are selected for. Genetic DNA can introduce more, in a species. Evolution of Complex Adaptations Complex adaptations, such as the change from a simple to a complex eye, evolved over time as a result of a series of adaptive changes. The adaptations in the organisms living today are the result of natural selection acting on genetic variations that arose at particular times in history. There are three types of adaptations, structural, physiological and behavioural. 1. Structural Adaptations Anatomical changes 1. The first type of structural adaptations are, in the or arrangement of particular features either or can improve survival. Ex. Arrangement of teeth, shape of fins or beaks, long digestive tract of herbivores 2. A second structural adaptation is, which allows one species to resemble another species that might be dangerous to a predator. 3. Thirdly, makes potential prey difficult to spot. Ex. A ea horse called a sea dragon looks like the algae in which it lives Two Categories of Structural Adaptations A. Homologous structures - similarity in structure due to evolutionary dependent on origin, function. Ex. vertebrate forearms: Homology and analogy Homology Bat wing Human arm human hand, bat wing, whale fin, cat leg. Mouse foreimb B. Analogous structures - similarity in structure based on O Analogy for the Batwing Butterfly wing Bird wing not on common evolutionary origin. Ex. wings have developed independently in insects, reptiles, birds, and bats for the function of flying 2. Physiological Adaptations Physiological adaptations are associated with changes in the inside organisms Ex. enzymes for blood clotting, chemical defenses of plants, silk for spider webs 3. Behavioural Adaptations Behavioural adaptations are associated with how organisms Ex: migrations, courtship, foraging behaviour, response of plants towards light Extinction and Adaptations A species is extinct when the species has from our Earth. Extinction frequently occurs when the, or habitat undergoes some that the species can not adapt to. Ex. Climate change or human predation
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