As already stated conda and pip both enable you to create separate environments. A major advantage of using conda over pip is that conda has additional channels, such as bioconda and conda-forge, that enable software besides python or R to be installed. Through bioconda a user can install bioinformatics unix software with a single command. See https://conda-forge.org/ and https://bioconda.github.io/.

Also, you can use pip to install software if you have the anaconda distribution installed. As far as I know it does not work the other way around.