asked 155k views
3 votes
What type of experiment is an observational study?

A. In silico
B. In vivo
C. In vitro
D. In utero

2 Answers

3 votes

Answer:

in vivo

Step-by-step explanation:

its right on apex

answered
User Todmy
by
8.5k points
3 votes

in vivo. apex approved

answered
User Mehdi Raash
by
7.6k points
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