Prostate gland secretion helps neutralize seminal fluid because the prostate is?

Alkaline.

The prostate gland is a male sex gland that produces a milky fluid that makes up about 30% of the semen. The seminal fluid is slightly acidic, but the prostate gland secretion is alkaline, which helps to neutralize the acidity of the seminal fluid and create an environment that is more favorable for the sperm.