Which of the following statements below is not true about stage 3 of the birthing process.

a. the placenta and umbilical cord are delivered.

b. it lasts approximately 5 to 10 minutes.

c. intense contractions occur.

d. the placenta remains intact.

Crossing over is a method of (blank)?

Which skeletal system is represented by the shaded portion of the skeleton? spongy skeleton compact skeleton axial skeleton appendicular skeleton

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.