Project life cycle and Process groups

 Are both statements true?

1. A project life cycle phase always contain process groups but a process group doesn't contain life cycle phases.

2. It is possible for a project to have process groups but not one or more phases.

 My answers:

Statement # 1: TRUE

Statement # 2: FALSE (Does this question ask whether a project can exist without even a single phase?)

 Yes that's what I meant regarding statement 2 that whether a project can exist without even a single phase?