The rules of research are the same whether you are a materialist or not.
Your excerpt of the Lamarck theory is precisely my understanding of Larmarckian evolution theory which I do not equate to "non-random variation which anticipates or responds to need">.
The latter would include the master control genes (Gehring), semiosis, complexification methods, etc. which are not acquired traits but "built in" or "designed" depending on one's theology/ideology.
Must go stain now, catch you later.