A bone cell, formed when an osteoblast becomes embedded in the matrix it has secreted.
April is the <u>fourth month</u> of the year in the Gregorian calendar, the fifth in the early Ju.lian, the first of four months to have a length of 30 days, and the second of five months to have a length of less than 31 days.
It is c. White blood cells
The stage that scientists begin to ask questions and attempt to explain observations is A. forming hypotheses. This is because a hypothesis is basically a testable question about observations scientists make.