Cancer is a disease in which cells divide out of control, and cancer is a family of diseases that is characterized by cells that replicate too rapidly. Given these facts, cancer is characterized by cells doing what out of control among the following options: - massive damage - smoking tobacco - destroying - replicating - Localized damage - failing - disappearing - Smoking
replicating

Balance is the ability to sense and maintain body position, and inner ear problems can affect balance. Given these facts, what can affect ability to sense and maintain body position among the following options: - ear canal - colors of the spectrum - movement of tectonic plates - inner ear problems - energy of moving objects - ear wax buildup - pierced ears - Electrical energy
inner ear problems

Most salamanders use their sense of smell to find a mate, and to couple in sexual union, to be matched or mated. Given these facts, how do salamanders usually find sexual partners among the following options: - mouth of rivers - It helps them survive - interact - it needs them - competition - movement - sense of smell - heat produced
sense of smell