The Xenomorph from the science fiction film "Alien" has acidic blood.

The answer is true because in the science fiction film Alien, the Xenomorph, a fictional extraterrestrial creature, has acidic blood. This is a notable characteristic of the Xenomorph species, where their blood possesses a highly corrosive quality. When their blood comes into contact with any material, it rapidly burns through, causing severe damage to both living organisms and inanimate objects. This attribute adds to the danger and deadliness of the Xenomorph, making it a memorable and lethal antagonist in the film.