__________ are ledges constructed on the inside of a masonry wall to support the floor joist of the upper level

There are 8 grams of pure drug in 32 milliliters of solution. What is the percent strength of the solution?

What will be an ideal response?

A(n) _______________ gland secretes its product directly into tissue, fluids, or blood. 

Fill in the blank(s) with the appropriate word(s).