Biology is huge. It encompasses everything from neuroscience to zoography. Somebody could probably make a good case for psychology being under the umbrella of biology, if they were inclined.

I'd guess the replication crisis in biology is not evenly distributed among branches of biology; for instance I guess it's much worse in biomedicine than it is ornithology. And even within one branch of the biology, I expect the replication crisis is not evenly distributed. Studies about the behaviors of birds probably reproduce less than studies about the distribution of birds (particularly since the introduction of photography, which removes a lot of ambiguity from the later but not necessarily the former.)