waht is the meaning of that and can i get an example of that plz? :)
2007-02-12 11:23:25 · 3 answers · asked by ¤AFTERN00N L0VAH¤ 2 in Science & Mathematics ➔ Biology
It means species are variants, not essential in identity. A simple example is the mating of horse and donkey to produce mule. A more complex example is the " ring " species of salamander that rings the Central valley of California. All along the ring, the various types of salamanders mate. the two ends of the ring do not mate, though.
2007-02-12 11:49:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
LOL. You mean "inconstancy of species."
It means that a species will change over time.
We now say that an isolated population may change over time due to selection and genetic drift.
A good example of that happening is the adaptive radiation which occurred with the finches on the Galapagos Islands. They're descended from a mainland finch, but on the islands, several distinct species formed with different sized beaks, to handle different food sources.
2007-02-12 20:20:36 · answer #2 · answered by Anonymous · 1⤊ 0⤋
im not 100% sure about this since i cant find anything to back it up on the web.
but i do believe it had something to do with wether the method of 'natural selection' came down to the individual's actions and experiences or the the individual's genes.
is it the fact that the frog has no treeclimbing genes, or is it because it simply fell down so many times that it no longer attempts to climb a tree.
2007-02-12 19:37:15 · answer #3 · answered by mrzwink 7 · 0⤊ 1⤋