Cervical lymphadenitis is usually caused by a viral upper respiratory infection. The key symptom of lymphadenitis is the presence of a painful mass in the cervical area, often accompanied by fever, runny nose, sore throat, and cough.
Question and answer. Which of the following defines evolution? a change in environmental conditions a change in an animal's physical traits a change in a population's gene pool a change in an individual's genetic. makeup. Evolution is a change in a population's gene pool.
Add New Page. Talk1 Share. Evolution is the first evolution in the PokÃ©mon franchise when one PokÃ©mon, upon reaching a certain level, using a certain stone, learning a certain move, or being traded, evolves into a different kind of PokÃ©mon.