z1 by konRAD ZUSE
Convergent:)
A new and better adapted species.
Design!
A competitive environment always leads to evolution, which is the law of nature.
Man is an ape. The evolution of one is the evolution of the other. Genetics in a particular immediate environment and reproductive isolation leads to the variences in two species that share very recent common ancestors.
gradualism
Natural selection leads to evolution by giving the organism that is best suited for the area to thrive. Thus those who not suited for the area die off and evolution moves forward.
Genetic mutation does not always lead to sterilization as you point out. This however is not the way evolution happens. Evolution occurs mainly through small adaptive changes over a long period of time that are not mutations. Evolution does not happen suddenly.
Macro-evolution. Or, more accurately, speciation.
>The structural and well-organised gradual process of change means 'biological evolution'. >Variation and heridity are two basic factors of evolution. >In long term.evolution leads to existence of new species which have different characteristics than their ancestors.
Biological evolution is the change of animal and plant life over time. Biological evolution is used to explain changes in finch beaks for example.
Natural selection is the most powerful driver of evolution and it is the only mechanism of evolution ( genetic drift and gene flow are two other mechanisms ) that leads to adaptive change. Natural selection is the nonrandom survival and reproductive success of of randomly varying organisms. Evolution is the change in allele frequency over time in a population of organisms.