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- Adaptations are essential to the species’ survival. The adaptive traits that the species will acquire through time may be structural (i.e. physical adaptive traits), behavioral (e.g. vocalizations, courtship rituals, nesting, and mating), or physiological (e.g. developing resistance to diseases or to toxic chemicals).
www.biologyonline.com › dictionary › adaptationAdaptation - Definition and Examples - Biology Online Dictionary
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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.
- Paedomorphosis
paedomorphosis, retention by an organism of juvenile or even...
- Cold Adaptation
Other articles where cold adaptation is discussed: climatic...
- Sesamoid Bone
Other articles where sesamoid bone is discussed: joint:...
- Comparative Method
Other articles where comparative method is discussed:...
- Industrial Melanism
industrial melanism, the darkness—of the skin, feathers, or...
- Phylogenetic Tree
phylogenetic tree, a diagram showing the evolutionary...
- Phenotype
Phenotype, all the observable characteristics of an organism...
- Thumb
Thumb, short, thick first digit of the human hand and of the...
- Canine Teeth
canine tooth, in mammals, any of the single-cusped...
- Paedomorphosis
- Adaptation Definition
- Types of Adaptation
- Examples of Adaptation
- Quiz
An adaptation, or adaptive trait, is a feature produced by DNA or the interaction of the epigenome with the environment. While not all adaptations are totally positive, for an adaptation to persist in a population it must increase fitness or reproductive success. All offspring, whether formed sexually or asexually, inherit their traits from their p...
Genetic Mutation and Recombination
Deoxyribonucleic acid, or DNA, is the molecule that carries the information necessary for creating and maintaining life. DNA is made from a series of nucleotides, 4 small chemicals which chain together. The sequence of these chemicals can be read by specialized enzymesand organelles within cells to produce new proteins. These proteins have various functions, and determine how the cell functions within its environment. Since the first proteins and cellular constituents aggregated to form the f...
Changes in Environment
Changes in the environment are second major category of adaptation. In many cases the epigenome is as or more important that the DNA itself. Large environmental changes, such as a change in ocean temperature or acidity, can affect a great number of species. As the environment changes, the proteins of the organisms start to function differently. Changes to the DNA or to how the epigenome interacts with the new environment can lead to a novel adaptation. For instance, life on Earth currently de...
Rhinocerous Beetle
If you’ve ever seen a Rhinoceros Beetle, you’ve probably wondered what it uses those huge horns for. Seen below is a male Rhino Beetle, with its distinctive headgear. Like all arthropods, the beetle is divided into segments. These various sections are very responsive to adaptation. In the Rhino Beetle, the head section has developed these large thorns. The male beetles use these large obtrusions to fight each other, in competition for females. It is presumed that ancestral beetles had little...
Digestive Tract in Mammals
If you were to dissect various mammals, you would find something very peculiar in the size and composition of their digestive tract. Carnivores, like wolves and cats, have very short and simple digestive tracts. In fact, the more carnivorous an animal, the shorter and simpler the digestive tract is. Meat and animal products are easily digested. The adaptation of a short gut allows these animals to quickly process the energy out of their meaty meal, before it starts to rot in their gut. Herbiv...
1. A fox has a litter of 3 kits. 1 of the kits is randomly eaten by an eagle. Only 1 of the remaining kits learns how to successfully feed itself, the other starves to death. Which of the following could be considered an adaptation? A. The learning that allowed the survivor to feed itself B. Any genetic basis for the intelligence of the surviving f...
Oct 19, 2023 · One example of behavioral adaptation is how emperor penguins in Antarctica crowd together to share their warmth in the middle of winter. Scientists who studied adaptation prior to the development of evolutionary theory included Georges Louis Leclerc Comte de Buffon.
An adaptation is a heritable trait that has evolved through natural selection. Adaptation is closely related to biological fitness, which governs the rate of evolution as measured by change in …
Jun 15, 2022 · 1) According to Charles Darwin’s theory of evolution by natural selection, the organisms adapt to their environment so that they could persist and pass their genes on to the next generation. In the ecosystem, several species co-adapt, and in so doing they also co-evolve. Take for instance the symbionts in a lichen association.
Evo Examples. Teaching Resources. Many of the features of organisms that most impress us are adaptations. Learn about what evidence biologists look for to determine if a trait is an adaption and common misconceptions regarding adaptations. However, not all traits of organisms are adaptations.
Oct 19, 2023 · An adaptation can be structural, meaning it is a physical part of the organism. An adaptation can also be behavioral, affecting the way an organism responds to its environment. An example of a structural adaptation is the way some plants have adapted to life in dry, hot deserts.
