How does evolution explain more than one kingdom of organisms?

Question

Do proponents of evolutionist believe that each kingdom was derived from separate instances of abiogenesis.

All animals are part of the animal kingdom, I was referring to the difference between animals, plants, etc. Organisms are classified usually into 3, 5, or 7 kingdoms.

Answer 1

No. Scientist say that at the basic level there is only one kind of life on earth.

Answer 2

> Do proponents of evolutionist believe that each kingdom was derived from separate instances of abiogenesis.

Nope. All life today appears to have originated with a single instance of abiogenesis, hence the universal genetic code -- the same codons code for the same 20 amino acids in almost every organism living today.

We don't know what was going on prior to the Oxygen Catastrophe -- but it appears only one kind of life survived that, and we're all descendants of those survivors.

Answer 3

A biology class will confirm that on a cellular level animals an plants have very similar 'parts.' Both have cell membranes, nuclei (nucleuses, for the layman), and other parts that would be fairly meaningless to list without a grounding in biology (mitochondria, lysosomes, rough endoplasmic reticulum, etc.). The fact that almost every part in a given cell, whether that cell is animal or plant, is present in all cells is certainly a strong argument for evolution having acted on a common ancestor between them.

Answer 4

Abiogenesis is the formation of life from non-living matter. Most biologists believe that some very primitive form of life eventually arose from non-living matter in the "primordial soup". All current life evolved over time from these primitive first cells.

Also, CF above referred to mammals, fish, etc, as kingdoms. These are not kingdoms according to Linnaean taxonomy. Animalia is a kingdom...mammalia, aves, etc, are examples of classes. However, as Lithium stated, these are all arbitrary divisions created by humans.

Answer 5

a factor of evolution is mutation. mutations gradually change an organisms gene expression, so if every organism started off the same and but some were isolated mistakes are bound to happen in the DNA replication of the two organisms which will eventually give rise to two different species which can no longer reproduce with each. so different kingdoms arise by many of these same speciations. it is apparent that everything is related because of DNA and also one species can make proteins that another species encodes for.

Answer 6

Kingdoms are arbitrary divisions imposed by humans.

Ultimately, populations split into groups and evolve separately, then the groups split and evolve again, etc. The earliest splits had the most time for divergent evolution. That's why the earliest splits manifest themselves as the most dramatic changes (for example, animals vs. plants).

Animals and plants are very similar on a genetic level. They perform many processes (anaerobic glycolysis, for example) in identical ways.

Answer 7

Lets look at some of the better known Animal Kingdoms..

Mammals, Fish, Birds..

ALL obviously have one main source.. since all have some pretty major similarities... very similar bone structure... stomachs, eyes.. etc.. so its pretty obvious that as diverse as they are on the outside they are all very very similar on the inside...so they had to EVOLVE from one source.. mutation after mutation....

look at dogs for a clearer picture... ALL modern dogs were decendants from WOLVES... yet a Pomeranian and a Dalmation dont look much the same.. yet all EVOLVED (with mans help) from the same source - wolves...