Why do the lungs appear collapsed in the fetus

1. which of the following is correct regarding opiates/opioids: a. they all have a natural component as a starting pointb. they have low addiction possibilitiesc. methadone binds to some of the same receptorsd. a and care correcte. all are correct

What is the correct order of cell division? include what happens in each phase

If there is another new infectious disease somewhere in the world, what do you think canadian officials should do