What mineral(s) is/are are stored in bone? (SELECT ALL THAT APPLY)

What cells are bone stem cells, giving rise to bone-producing cells?

The insoluble protein that makes the epidermis a good barrier to water loss and water gain is:

What portion of the pilus (hair) contains living cells?

What vitamin is produced in the skin and requires sunlight?

Which of the following medication is contraindicated for pregnancy because of teratogenic effects?

A woman has just given birth to an infant whose 1 minute Apgar score is 9. Meconium stained amniotic fluid was noted upon rupture of membranes. What action by the nurse is most appropriate?

A nurse assess the fetal position in a laboring woman. The fetal position is documented as LSP. What action by the nurse is best?

Finally, with X the total number of blocks so that X = X_1 + … + X_n, calculate E(X) by completing the calculation    E(X) = E(X_1) + \sum_{i=2}^n E(X_i) =  … Your result should be as simplified as possible (and make sure to check that it coincides with your previous answers when n = 1, n = 2, n = 3).  

Consider the undirected graph G given below. Now answer the following questions. (You do not need to argue for your answers. You can write an edge by its end points, like 78 or 87 for the rightmost edge.)1) What are the bridges of G, if any?(Recall that a bridge in a connected graph is an edge with the property that if it is removed, the resulting graph is not connected.) 2) Assume that G is traversed by the Depth-First Search algorithm, starting with node 1 and for each node exploring its neighbors in numerical order (for example, when exploring node 3, node 2 will be processed before node 5).List the back edges.