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Altruism (biology) - Wikipedia

Overview. In ethology (the study of behavior), and more generally in the study of social evolution, on occasion, some animals do behave in ways that reduce their individual fitness but increase the fitness of other individuals in the population; this is a functional definition of altruism. Research in evolutionary theory has been applied to social behaviour, including altruism.

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Our definition of science - The Science Council ~ : The ...

Our definition of science. Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool) ...

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What Is Coevolution? Definition and Examples

Jun 03, 2019·Coevolution refers to evolution that occurs among interdependent species as a result of specific interactions. That is, adaptations occurring in one species spur reciprocal adaptations in another species or multiple species. Coevolutionary processes are important in ecosystems as these types of interactions shape relationships among organisms at various trophic levels in communities.

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Insecticide | Definition of Insecticide at Dictionary.com

Insecticide definition, a substance or preparation used for killing insects. See more.

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Geology & Earth Science Dictionary: Photos & Definitions

Dictionary of Geological Terms - Only $19.99 All scientific disciplines have an essential vocabulary that students and professionals must understand to learn and communicate effectively. A geology dictionary that is used regularly is one of the most important tools for developing professional competence.

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Scientific Dictionary - Science glossary and terminology links

Scientific Dictionary and Science and Medical news headlines. Scientific Dictionary. Online Scientific dictionaries, dictionaries on biology, life sciences, natural history, chemistry, medical, botanical and …

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Sessile - Definition and Quiz | Biology Dictionary

Apr 28, 2017·Sessile Definition. Biologically speaking, an organism that is sessile (as opposed to motile) lacks the ability of self-locomotion and is predominantly immobile.. In zoology, sessility applies to those animals which are attached to a substrate.Most often these are marine animals, such as mussels, although parasites such as the cochineal insect assume a fixed life cycle upon their plant hosts.

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Ecology: Definition, Scope and History | Biology

ADVERTISEMENTS: In this article we will discuss about:- 1. Definition of Ecology 2. Study of Ecology 3. History 4. Branches 5. Scope. Definition of Ecology: Ecology is a Greek word which means the study of the habitation of living organisms (oikos=habitation, logos=discourse). The word ecology has been defined variously by different authors. Some prefer to […]

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Insecticide | Definition of Insecticide by Merriam-Webster

Insecticide definition is - an agent that destroys one or more species of insects; broadly : an agent that destroys insects as well as other small pests (such as mites or nematodes). How to use insecticide in a …

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Spiracle - definition of spiracle by The Free Dictionary

Define spiracle. spiracle synonyms, spiracle pronunciation, spiracle translation, English dictionary definition of spiracle. ... (Zoology) any of several paired apertures in the cuticle of an insect, by which air enters and leaves the trachea. 2. (Zoology) a small paired rudimentary gill slit just behind the head in skates, rays, and related ...

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Definition of Science - Explorable.com

Science can also be understood as a highly skilled technique or practice. In more contemporary terms, science is a system of acquiring knowledge based on the scientific process or method in order to organize a body of knowledge gained through research. Science is a continuing effort to discover and increase knowledge through research.

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Science definition - What is science?

According to Webster's New Collegiate Dictionary, the definition of science is: "knowledge attained through study or practice," or "knowledge covering general truths of the operation of general laws, esp. as obtained and tested through scientific method [and] concerned with the physical world."

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Science | AAAS

The strength of Science and its online journal sites rests with the strengths of its community of authors, who provide cutting-edge research, incisive scientific commentary, and insights on what ...

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Spiracle | Definition of Spiracle at Dictionary.com

Spiracle definition, a breathing hole; an opening by which a confined space has communication with the outer air; air hole. See more.

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SCIENCE | Definition of SCIENCE by Oxford Dictionary on ...

‘Nanotechnology is an emerging engineering field that borrows from such areas as materials science, engineering, chemistry, biology and physics.’ ‘It's used in medical science and some other areas, too.’ ‘Perhaps the other area of psychological science most relevant to camps is behavioral psychology.’

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What is Food Chain Definition and Examples | Read Biology

Nov 15, 2019·Food Chain Definition: The food chain can be defined as; “it is the process by which nutrients are transferred between the different species that make up a biological community. The graphic chain who feeds on who in nature.”

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Our definition of science - The Science Council ~ : The ...

Our definition of science. Science is the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence. Scientific methodology includes the following: Objective observation: Measurement and data (possibly although not necessarily using mathematics as a tool) ...

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Taxonomy (Biology): Definition, Classification & Examples ...

May 28, 2019·Taxonomy (Biology): Definition. Taxonomy is the science of describing, naming, and classifying organisms with increasing specificity. Latin names are used in a worldwide system of classification that goes from broad to specific categories. Scientists need a uniform system of naming in order to have meaningful conversations about new and ...

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Word List: Definitions of Sciences and Studies

Definitions of words meaning sciences: ology words. Sciences and Studies. This list defines 633 sciences, arts and studies of various degrees of respectability and rarity, ranging from the common and esteemed (chemistry) to the obscure and quirky (peristerophily).

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science noun - Definition, pictures, pronunciation and ...

Definition of science noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage.

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Biology Dictionary - Definitions for biology students

Biology Dictionary is a free, concise, illustrated dictionary of biology and medicine. The entries are listed alphabetically, which allows you to find the biology terms you're looking for, even if you're not sure about their spellings. You can also use the dictionary's search engine. Terminology is added to this dictionary on an ongoing basis.

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Entomology - Wikipedia

Entomology (from Ancient Greek ἔντομον (entomon) 'insect', and -λογία () 'study of') is the scientific study of insects, a branch of zoology.In the past the term "insect" was less specific, and historically the definition of entomology would also include the study of animals in other arthropod groups, such as arachnids, myriapods, and crustaceans.

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Linnaean Classification: Definition, Levels & Examples ...

Carl Linnaeus was a Swedish botanist who developed a new system of classification of living organisms in 1758. This practice is called taxonomy, or Linnaean enterprise. It continues to be universally used today, with updates -- often drastic -- to account for modern scientific discoveries.

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What is an Arachnid? - Definition, Characteristics ...

Definition. Many people have a strong fear of spiders. Perhaps yourself included! Spiders are just one type of animal found in the category of arachnids, a class of invertebrates including spiders ...

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Caste | biology | Britannica

Caste, in biology, a subset of individuals within a colony (society) of social animals that is specialized in the function it performs and distinguished by anatomical or morphological differences from other subsets. Social insects such as ants, bees, termites, and wasps are the main species known

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Biology Dictionary - Definitions for biology students

Biology Dictionary is a free, concise, illustrated dictionary of biology and medicine. The entries are listed alphabetically, which allows you to find the biology terms you're looking for, even if you're not sure about their spellings. You can also use the dictionary's search engine. Terminology is added to this dictionary on an ongoing basis.

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