A clinical research organization wants to conduct a large-scale study on the effect of changes in clients' activity levels after surgery on postoperative ileus. Prior to the conduction of the full-scale study, the health care team performed a pilot study to predict an appropriate sample size and to improve the study design. Which type of research does this study belong to?

the calvin cycle has three stages. in stage 1, the enzyme rubisco incorporates carbon dioxide into an organic molecule. in stage 2, the organic molecule is reduced. in stage 3, rubp, the molecule that starts the cycle, is regenerated so that the cycle can continue

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

they had the law tat factories that produces smoke cannot be built near residential buildings.

building of proper sewage system was done to ensure that the waste is carried away from the humans so that they do not get diseases from it.

also they built water systems to provide water in those areas which are drought prone.