The phrase "adaptive need" is correct and usable in written English.
It can be used in contexts where you are discussing requirements or necessities that change based on circumstances or environments.
Example: "In a rapidly changing market, understanding the adaptive need of consumers is crucial for product development."
Alternatives: "flexible requirement" or "dynamic necessity".
The most probable is that it arises from the paramount adaptive need for animals to guard against parasites, which are more likely to produce itch than pain.
It denotes a fundamental aspect of evolution where the jobs encoded by one component of the genome can undergo alteration so that they meet a new adaptive need.
The Darwinian premise is that genetic variations—"mutations" including chromosomal breaks and rearrangements) in current terminology but "hereditary variations" in Darwin's occur "randomly," that is, irrespectively of environmental conditions and adaptive "need".
As reproductive gains from short-term mating would be largely eliminated if a female was not fertile, it is possible that ancestral men may have had an adaptive need to identify and pursue short-term partners who were healthy and fertile (Symons, 1979).
Climate change policy, decided by a small group of nations at the expense of the small island developing states and low-lying coastal countries such as Bangladesh, will fail to meet the legitimate right to development for 7 billion people and the adaptive needs of a continent like Africa to the climate change already under way.
Here 'chance' signals a lack of relation or connection to adaptive needs, an idea akin to, but ontologically quite distinct from, the contrast between 'chance' and 'design'design
Darwinian selection theory is a two-step process the production of variation unrelated to the adaptive requirements of the organism, and differential perpetuation of those variations that serve adaptive needs.
In that latter sense, conspiracy theories serve the same basic adaptive needs as evolutionary psychologists argue for religion: ascribing a single source or agency as the cause of events reduces anxiety (and therefore increases functionality), regardless of how factual the account might be.
Therefore, there is no optimal universal value of the mutation rate and species attempt to adjust it to their momentary adaptive needs.
Single FGUs, particularly the downstream ones, may be energetically the most efficient solutions to adaptive needs, but are genetically vulnerable both to mutations within their coding sequences and their upstream elements.
By doing so, yeast features differential growth modes according to adaptive needs to confer cell protection and enhance dissemination and substrate colonization [ 4, 5].
