Scripture doesn't say that. And such a belief is inconsistent with the evidence. For example, Adam and Eve could have had, at most four different alleles for any particular gene locus. But humans today have dozens, many of them useful for particular environments. All the rest had to have evolved by mutation.
Take the "cat kind"; they have a huge genetic variation, and it is physically impossible for any cat to have had all that variation, for the reason discussed above. They evolved. And the evidence is that all the carnivora had a common ancestor, from genetic, molecular, anatomical, and fossil evidence. Why should anyone believe a non-scriptural doctrine which is directly contradicted by reality?
No. We see gradual evolution of various modern lines of organisms. If God just poofed them into existence, we wouldn't see all those transitionals in the fossil record. And we wouldn't see the nested hierarchy of taxa that was first discovered by Linnaeus, and later confirmed by DNA analysis. And we know this works, because we can test it on organisms of known descent.
No. We see nature continuing to evolve new organisms, speciation, and new alleles not seen before.
Genesis does not support creationism. It is somewhat like other Middle Eastern creation stories, but notice that it doesn't have a nature god running here and there, creating things one at a time; Instead the real Creator produced the universe, and it brought forth living things as He intended.
Directly observed. New species appear from time to time. Sometimes, we've been lucky enough to document it.
The ICR admits new species, genera, and familes evolve. Actually, they don't like the word "evolve", but they still admit it.
It does. But Genesis doesn't support creationism.