“Quick/Easy” 2 or 3 credit science course?

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Study.com is going to have the most. Here are those:

AST 101: Intro to Astronomy
NUTR 101: Science of Nutrition
BIO 101: Intro to Biology
BIO 102: Basic Genetics
GEN 101: Intro to Genetics
BIO 103: Microbiology
BIO 105: Anatomy & Physiology
BIO 106: Pathophysiology
CHEM 101: General Chemistry
ESCI 101: Earth Science
ESCI 104: Intro to Meteorology
ENS 101: Environment & Humanity
SCI 101: Intro to Natural Sciences
SCI 102: Principles of Physical Science
PHY 101: Intro to Physics
PHY 111: Physics I
PHY 112: Physics II
GEOL 101: Physical Geology

Thank you for your response and list Dfrecore. Do you happen to know which ones on this list would be the quickest to complete from your experience?

If anyone else have taken those, feel free to chime in.

Also, I know “quickest” is very subjective but more so quick in regards to amount of lessons and not too difficult for a non-science major.