buffalo:
You are pitching molecules to man with natural selection as the outside driving source of all change.
The assumptions are that
- molecules can arrange themselves into organelles, which in turn combine to form basic bacteria and other unicellular creatures, through the fundamental processes that we study in chemistry.
- RNA and DNA, along with the proteins required to carry out the functions necessary for life and replication all were formed as part of that random chemical activity.
- the Krebs cycle, involving ATPase, resulted from DNA altered by random chemical events
- chlorophyll was formed in cells whose DNA was altered through random chemical activity
- multicellular organisms with tissues having specialized functions happened as a result of random changes in the genome, which fortuitously produced a phenotype capable of interacting with its environment
- sexual reproduction came about as the result of another glitch in the reproductive process (see below)
- the capacity for motion was the result of a series of glitches that produced actin and myocin, bringing them together in myocytes.
- neurons were formed after neurotransmitters came about through other glitches,
- these serendipitously had the capacity to connect and communicate to one another and to muscles to produce coordinated movement
- they also allowed for perceptions of various kinds, emotions, and cognitive capacities
- all this of course because randomly all this information including that which describes how it should unfurl was compacted into one seed, one egg, to be fertilized by two gametes, half cells specialized for that function
I think I may have made my point although I could go on and expand on any of these.
Natural selection basically does away with all those creatures whose DNA does not produce a phenotype, an actual living thing that fits and is able to procreate - a motivator for conscious beings, to be sure, but hardly a driving force for change by atoms and molecules.
The driving force for morphological change is within the organism, built into the genetics and epigenetic processes created with first of its kind (not to be confused with the modern definition of species).
None of this explains the psychological dimension of organisms, nor the spiritual which binds, shapes and unites the matter into one living being. Nor is a geneological relationship necessary or explanatory for the vast differences in complexity between different kinds of living things.