well I mean I don't know a lot but, Yes, a physician can proceed with diagnosis of a disease based on molecular biology data. It would have been easier to explain if you had shared the data with us. Molecular Biology techniques like polymerase chain reaction (PCR) is widely used for diagnostic purposes.
Answer: B. Water breaks down into oxygen molecules for respiration.
Water is the required for photosynthesis, a process by which plants (terrestrial and aquatic) makes their food by utilizing water as a reactant to produce oxygen and glucose as product. The glucose act as a source of energy for conducting various metabolic processes in plants but oxygen is released in the air.

This oxygen is necessary for terrestrial and aquatic animals for respiration. Therefore, water breaks down into oxygen by the process of photosynthesis, hence water plays important role in respiration in living beings.
Cell division or reproduction process is called mitosis
Their years fly by quicker maybe.
Answer: The number of students in a class
The number of workersin a company
ect...
Explanation: Discrete data is Information that can be categorized into a classification. Discrete data is based on counts. Only a finite number of values is possible, and the values cannot be subdivided meaningfully. For example, the number of parts damaged in shipment.