Answer:
When conducting research, scientists use the scientific method to collect
measurable, empirical evidence in an experiment related to a hypothesis (often in
the form of an if/then statement), the results aiming to support or contradict a
theory.
Answer:
The advantage of small cell size is that substances like organic molecules and ions can diffuse easily into the cells whereas wastes can diffuse easily out of the cells.
C. because stimuli is how your body responds to something, and in this case, someone's heart rate increases WHEN their blood oxygen drop. Do you see how it responds? ;-)
