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Photosynthesis

This multipart animation series explores the process of photosynthesis and the structures that carry it out.

Science Says: Sex and Gender aren’t the same

Anatomy at birth may prompt a check in the “male” or “female” box on the birth certificate — but to doctors and scientists, sex and gender aren’t always the same thing.

The Trump administration purportedly is considering defining gender as determined by sex organs at birth, which if a