Strictly speaking, reproductive fitness is meant. The organism that has the most and best quality progeny adapted to the immediate environment will leave more representations of it's alleles in the population gene pool and the allel frequency will change over time fulfilling the definition of evolution.
Fitness in Darwinian evolution refers to an organism's ability to survive and reproduce in a given environment. Organisms with traits that enhance their ability to survive and produce offspring are considered more fit, leading to a higher likelihood of passing on their genes to future generations. Thus, fitness is a key factor in natural selection, shaping the characteristics of populations over time.
Better adaptions in the immediate environment leading to greater reproductive success. All organisms in a population are variations and in the immediate environment some organisms are better suited to survive and reproduce against their conspecifics. They have greater fitness.
Specific clues that might clearly distinguish a Darwinian explanation include evidence of gradual change over time, the presence of natural selection driving adaptation, an emphasis on common ancestry and descent with modification, and the reliance on genetic variation for evolutionary change. Additionally, the observation of patterns such as homology, vestigial structures, and biogeography can support a Darwinian explanation of biological diversity.
Look, Charles Darwin never addressed the issue of biogensis beyond speculation if that. Darwinian Evolution is only concerned with how do existing organisms give rise to new species, arguing that species are not immutable and give rise to new species, ie, life from existing life. In "Origin of Species" he presents the mechanism of evolution, remarkable since he did not know of Mendel's work or the existence of DNA! To say Darwinian Evolution claims life from non organic beginnings is erroneous and if propagated, deceitful. If you decide to challenge Darwinian Evolution then, please, do so from a position of understanding - read the book or take a course in Evolutionary Biology.
Darwinian evolution is based on the idea of natural selection, where individuals with advantageous traits are more likely to survive and reproduce, leading to the gradual accumulation of these traits in a population over generations. In contrast, Lamarckian evolution suggests that acquired traits during an individual's lifetime can be passed on to offspring. Specific clues that distinguish these explanations include the basis for inheritance of traits (genetic in Darwinian vs. acquired in Lamarckian) and the mechanism of how populations change over time (gradual accumulation of genetic changes in Darwinian vs. direct transfer of acquired traits in Lamarckian).
Darwinian fitness measures the reproductive success of a species. This measures how much of a contribution a specific individual contributes to their species' gene pool, and whether certain gene mutations within an individual will or will not have an overall effect on the gene pool of a species as a whole.
Fitness in Darwinian evolution refers to an organism's ability to survive and reproduce in a given environment. Organisms with traits that enhance their ability to survive and produce offspring are considered more fit, leading to a higher likelihood of passing on their genes to future generations. Thus, fitness is a key factor in natural selection, shaping the characteristics of populations over time.
Fitness (in Darwinian terms).
Better adaptions in the immediate environment leading to greater reproductive success. All organisms in a population are variations and in the immediate environment some organisms are better suited to survive and reproduce against their conspecifics. They have greater fitness.
There are a few different fallacies in physical fitness. The biggest one is the phrase 'No pain, no gain'. Physical fitness is meant to be tough, but not meant to hurt.
To keep healthy
Darwinian Fairytales was created in 1995.
A Darwinian Left was created in 2000.
A Darwinian Left has 70 pages.
Darwinian Pool Room was created in 1950.
The ISBN of A Darwinian Left is 0-300-08323-8.
The relative probability of survival and reproduction for a genotype.