The answer is C - an explanation based on observation, experimentation, and reasoning.
The reason why the correct answer is C and not D is because D would most likely be a hypothesis. Each hypothesis corresponds to an idea that needs empirical testing and we want to see if it's true or not.
A theory on the other hand is a general collection of possibly multiple hypothesis that have been tested and confirmed. A theory incorporates a more conclusive framework under which scientists can test their hypothesis.
The statement that is true about biogeochemical cycles is : A. In biogeochemical cycles, nutrients are not synthesized anew but are recycled in the biosphere.
For example, the excretion that we used after consuming nutrients will be used by soil to fertilize itself
hope this helps
Answer:
A. The mutation will become more common
Explanation:
Answer: Legionnaires' disease
Explanation:
Legionnaires' disease is a kind of pneumonia that is caused by the bacteria.The bacterial infection spreads by breathing the aerosol or mist from the water. The bacteria does not spread from person to person thus the disease is non-contagious.
The bacteria of the disease lives in the aquatic environment and may contaminate the water body. The symptoms of the disease includes the chills, coughs, high fever, headaches and muscle aches. X-ray and lab test can be done to diagnose the disease.