Quick Answer: What Is A Ontogeny?

What does the word ontogeny mean?

: the development or course of development especially of an individual organism..

What are the 4 principles of behavior?

The Four Principles of Human BehaviorPrinciple One: Behavior is largely a product of its immediate environment. … Principle Two: Behavior is strengthened or weakened by its consequences. … Principle Three: Behavior ultimately responds better to positive than to negative consequences.More items…•Jul 1, 2015

What is parsimony ABA?

parsimony. Definition. the practice of ruling out simple, logical explanations before considering more complex or abstract explanations.

What is ontogenetic sequence?

Ontogenetic sequences are a pervasive aspect of development and are used extensively by biologists for intra- and interspecific comparisons. … This technique for discovering and formalizing sequences is called the “Ontogenetic Sequence Analysis” (OSA).

What is an ontogenetic shift?

INTRODUCTION. Ontogenetic dietary shifts (ODSs), the changes in diet utilisation occurring over the life span of an individual consumer, are widespread in the animal kingdom. ODSs have been most extensively researched in insects, amphibians and fishes.

What is human ontogeny?

Ontogeny is the development of a single individual, or a system within the individual, from the fertilized egg to maturation and death.1. From: Physiology of the Gastrointestinal Tract (Sixth Edition), 2018.

What is ontogeny example?

By studying ontogeny (the development of embryos), scientists can learn about the evolutionary history of organisms. … For example, both chick and human embryos go through a stage where they have slits and arches in their necks that are identical to the gill slits and gill arches of fish.

What do you mean by ontogeny repeats phylogeny?

The theory of recapitulation, also called the biogenetic law or embryological parallelism—often expressed using Ernst Haeckel’s phrase “ontogeny recapitulates phylogeny”—is a historical hypothesis that the development of the embryo of an animal, from fertilization to gestation or hatching (ontogeny), goes through …

What does recapitulate mean?

transitive verb. 1 : to retell or restate briefly : summarize recapitulate the main points of an argument He is best when commenting on the words of others; he is worst when attempting to recapitulate the history of sports or boxing.—

What is an example of a behavior caused by ontogeny?

An analogous selection process shapes operant behavior during ontogeny. For example, social consequences, such as a mother’s attention, act upon the variation of a child’s innate babbling sounds until the sounds are shaped into speech sounds common in the verbal community (Goldstein, King, & West, 2003.

What is extended ontogeny?

Definition. Extended length of each stage from infancy to adulthood. Extended parental investment in primates corresponds to such an extended ontogeny. Example: 15 years for a gorilla to reach sexual maturity, while only 10 weeks for a mouse.

What is ontogeny ABA?

ONTOGENY. : The development or course of development of an individual organism. A behavior with ontogenic origins is one that was acquired during the lifetime of the individual as a result of contingencies of reinforcement.

What is the difference between phylogeny and ontogeny?

To clear things up, ontogeny is development while phylogeny is evolution. Scientists can either be on the side of ontogeny or phylogeny. … Ontogeny is the study of the development of organisms while phylogeny is the study of evolution.

What are the stages of ontogenesis?

Like human beings, the Wistar rats go through the ontogenetic developmental stages «Prenatal → Birth → Infancy → Childhood → Adolescence → Adulthood → Death».

What is meant by biogenetic law?

Biogenetic law, also called Recapitulation Theory, postulation, by Ernst Haeckel in 1866, that ontogeny recapitulates phylogeny—i.e., the development of the animal embryo and young traces the evolutionary development of the species.

Why does Haeckel say ontogeny repeats phylogeny?

The phrase “ontogeny recapitulates phylogeny” was coined by Ernst Haeckel in 1866 and for many decades was accepted as natural law. Haeckel meant it in the strict sense: that an organism, in the course of its development, goes through all the stages of those forms of life from which it has evolved.

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