First of all science is needed to study most things including diseases and this is so since the study of diseases would require a research organism of course and this is any creature that scientist would use to study life and so without science this would not be possible as science allows for the study of animals and humans which are likely to be vectors and diseases requires epidemiology which are scientific disciplines similar to biology to better understand the disease processes and so science is definitely needed.
An example of vesiscle-mediated transport would be cell secretion by exocytosis.
The reason why this would be an example of vesicle-mediated transport is because all the other types of transport listed here are not something you would call vesicle-transport; the substances don't really get transported in vesicles. This is different in exocytosis where the compounds gets packaged into vesicles.
It takes 27 days for the moon to orbit the earth
Answer:
More nitrogen gas became present in the atmosphere
