Think about the following situations. Are they examples of experimental or observational research?
a) Mapping the vegetation of a park. experimental observational
b) Studying the efficiency of a bactericidal antibiotic. experimental observational
c) Finding out the diet of a moose species. experimental observational
d) Studying the fish species of a lake. experimental observational
e) Comparing the yields of different species of grain. experimental observational
f) Discovering the structure of a plankton organism. experimental observational
g) Studying the influence of an insect-eating bird on the insect species of a certain area. experimental observational
h) Comparing the survival of different plankton species in different acidity levels. experimental observational