The phenomenon where individuals with intermediate traits have higher fitness than those with extreme traits is known as:

In a species, the weight of newborn ranges from 2 to 5kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weight from 2 to 2.5 kg or 4.5 to 5 kg die. Which type of selection process is taking place?

Anthropogenic actions that leads to evolution is the use of

A change in the relative abundance of an allele (the allelic frquency) within a population, over a succession of generations is called

According to de Vries theory, evolution is

Identify the phenomenon in which the members of a species do not interbreed with the members of other species or same species

Ontogeny recapitulates phylogeny, this theory is called as

Before Darwin, Lamarck had said that evolution of life forms had occurred but driven by

If natural selection favors individuals at both extremes of a trait's distribution, while those with intermediate traits are selected against, what type of selection is occurring?

A population of fish exhibits variation in tail fin size. Fish with medium-sized tail fins (5-7 cm) have the highest reproductive success, while fish with very small (<3 cm) or very large (>9 cm) tail fins experience lower reproductive rates. This is an example of:

Which of the following natural process is likely to fasten organic evolution?