In scientific research, the term "observation" is crucial for collecting data. Which of the following best describes the role of observation in biological experiments?
A) Observation is used solely to form hypotheses without collecting any data.
B) Observation involves the direct and systematic collection of data through sensory input or instruments to understand biological phenomena.
C) Observation is primarily used to validate theoretical models without any experimental evidence.
D) Observation is only necessary for qualitative research and is not relevant in quantitative studies.