Catholics have a sacramental system which is designed to draw them closer to God. Righteousness is infused by cooperating with grace.
We protestants have a list of "do's" that we expect to see in believers. These "do's" are similar to a RCs sacraments in that they are designed to draw one closer to God. We read our Bibles, pray & meditate on the Scriptures, go to church/bible studies/other fellowships meetings, share the Gospel with others, etc. When a born-again believer doesn't demonstrate any of these things, others question whether that person is in good standing before God, if s/he is really a Christian. "Is s/he saved...s/he doesn't act like it".
My position is that we are saved by faith alone, but not by faith that is alone.
On evolution, the RCC concludes:
1. The origin of life is unknown to science.
2. The origin of the main organic types and their principal subdivisions are likewise unknown to science.
3. There is no evidence in favour of an ascending evolution of organic forms.
4. There is no trace of even a merely probable argument in favour of the animal origin of man. The earliest human fossils and the most ancient traces of culture refer to a true Homo sapiens as we know him today.
5. Most of the so-called systematic species and genera were certainly not created as such, but originated by a process of either gradual or saltatory evolution. Changes which extend beyond the range of variation observed in the human species have thus far not been strictly demonstrated, either experimentally or historically.
6. There is very little known as to the causes of evolution. The greatest difficulty is to explain the origin and constancy of "new" characters and the teleology of the process. Darwin's "natural selection" is a negative factor only. The moulding influence of the environment cannot be doubted; but at present we are unable to ascertain how far that influence may extend. Lamarck's "inheritance of acquired characters" is not yet exactly proved, nor is it evident that really new forms can arise by "mutation". In our opinion the principle of "Mendelian segregation", together with Darwin's natural selection and the moulding influence of environment, will probably be some of the chief constituents of future evolutionary theories.
source: bottom of page at
http://www.newadvent.org/cathen/05655a.htm
Roman Catholicism clearly teaches a works of merit approach to salvation. They long ago pronounced an anathema on all non-catholics which has never been rescinded. The papacy supports evolution.