What uses semiochemicals in urine to mark territory?
Options:
- (A) koalas
- (B) bacteria
- (C) humans
- (D) dogs
- (E) bears
- (F) cats
- (G) the Sun
- (H) rabbit OK. Let's think hard:
Male dogs use pheromones in urine to mark their territory. Pheromones are a sub-category of semiochemicals. Male dogs use semiochemicals in urine to mark their territory.
So, the final answer is (D).