*Question*
Male dogs use pheromones in urine to mark their territory, and pheromones are a sub-category of semiochemicals. Given these facts, male dogs use_ in urine to mark their territory. among the following options: - ammonia - Chemical energy - proteins - semiochemicals - animals - heat produced - nitric oxide - They have thick fur
**Answer**
semiochemicals

*Question*
Water vapor cooling causes that water vapor to condense, and clouds form by the condensation of water vapor. Given these facts, what can form when water vapor cools among the following options: - Chimneys - Evaporation - chemicals - streams - Wind - Organic nutrients - Clouds - mildew
**Answer**
Clouds

*Question*
Lymphocytes are the key cells involved in the immune response, and blymphocytes produce antibodies . Given these facts, what does the immune response produce among the following options: - antibodies - Allergies - DNA - lymph - massive damage - Energy - Chemical energy - viruses
**Answer**
antibodies

*Question*
If an object is kicked then force is exerted on that object, and an object can be anything, a sphere, a pyramid, a car tire, or an elaphant. Given these facts, what has force exerted on it when kicked among the following options: - gravity - density - feet - car tire - Sand dollars - volume - vehicles - some mammals
**Answer**
car tire