disposable soma theory: meaning, definition, pronunciation and examples
C2Academic, Scientific, Technical
Quick answer
What does “disposable soma theory” mean?
A biological theory proposing that organisms allocate finite resources primarily to reproduction at the expense of somatic (bodily) maintenance and repair, leading to ageing.
Audio
Pronunciation
Definition
Meaning and Definition
A biological theory proposing that organisms allocate finite resources primarily to reproduction at the expense of somatic (bodily) maintenance and repair, leading to ageing.
The idea that natural selection favours investment in reproductive fitness over indefinite bodily repair, meaning the body is essentially 'disposable' once its primary reproductive role is fulfilled, which explains the evolution of ageing and mortality.
Dialectal Variation
British vs American Usage
Differences
No significant lexical or spelling differences. The theory name is identical in both variants.
Connotations
Identical technical, academic connotations.
Frequency
Equally rare outside specialised evolutionary biology and ageing research contexts.
Grammar
How to Use “disposable soma theory” in a Sentence
The disposable soma theory [verb: proposes/argues/suggests/holds] that...[Subject] is explained/understood/interpreted [preposition: through/in terms of/by] the disposable soma theory.Vocabulary
Collocations
Examples
Examples of “disposable soma theory” in a Sentence
verb
British English
- Researchers aim to test what the theory predicts.
- The model disposables resources efficiently.
American English
- The theory predicts a specific trade-off.
- We can model how organisms allocate resources.
adverb
British English
- The resources are allocated disposable-soma-wise.
American English
- The process functions, according to the theory, in a disposable-soma manner.
Usage
Meaning in Context
Business
Not used.
Academic
Used in evolutionary biology, biogerontology, and life-history theory papers and textbooks. E.g., 'The disposable soma theory provides a mechanistic basis for the trade-off between reproduction and longevity.'
Everyday
Virtually never used in everyday conversation.
Technical
Core terminology in scientific discussions on the evolution of ageing, often contrasted with other models like antagonistic pleiotropy.
Vocabulary
Synonyms of “disposable soma theory”
Neutral
Weak
Vocabulary
Antonyms of “disposable soma theory”
Watch out
Common Mistakes When Using “disposable soma theory”
- Incorrect: 'disposable soma theory' (lowercase 'theory' when referring to the specific theory). Correct: 'Disposable Soma Theory' often capitalised as a proper noun.
- Incorrect: 'disposable somatic theory'. Correct: 'disposable soma theory'.
- Misunderstanding 'soma' as 'psyche' or 'mind' due to association with the drug or psychological term.
FAQ
Frequently Asked Questions
It was formally proposed by Thomas Kirkwood in 1977.
'Soma' is from Greek for 'body'. Here, it specifically refers to all the non-reproductive cells and tissues of an organism that need maintenance.
It is one of the leading evolutionary theories of ageing and is widely cited and supported, though it is part of an ongoing scientific discourse with other models like antagonistic pleiotropy.
Yes, it is a general evolutionary theory applied to all sexually reproducing species, including humans, to explain why we age and have a limited lifespan.
A biological theory proposing that organisms allocate finite resources primarily to reproduction at the expense of somatic (bodily) maintenance and repair, leading to ageing.
Disposable soma theory is usually academic, scientific, technical in register.
Disposable soma theory: in British English it is pronounced /dɪˈspəʊzəbl ˈsəʊmə ˈθɪəri/, and in American English it is pronounced /dɪˈspoʊzəbl ˈsoʊmə ˈθiːəri/ˌ ˈθɪri/. Tap the audio buttons above to hear it.
Learning
Memory Aids
Mnemonic
Imagine a company (the organism) that spends all its budget on launching new products (reproduction) and none on maintaining its factory (the soma/body). Eventually, the factory wears out – this is ageing.
Conceptual Metaphor
THE BODY IS A DISPOSABLE CONTAINER FOR GENES / RESOURCE ALLOCATION IS A BUDGETING DECISION.
Practice
Quiz
What is the core trade-off described by the Disposable Soma Theory?