The planes shown in the images are consecutively:

Centrosomes are associated with the nuclear membrane during the prophase stage of the cell cycle. In mitosis the nuclear membrane breaks down and the centrosome nucleated microtubules can interact with the chromosomes to build the mitotic spindle.

The mitotic spindle is a structure composed of micro-tubules which segregates chromosomes into the daughter cells during mitosis. A micro-tubule is a rope-like component of the cytoskeleton.. Which organelle shown in the picture serves as a micro-tubule organizing center during cell division?

From left to right, what type of solution are the red blood cells in?   Extracellular fluid——1—-, —————2——-, ———————-3—————–      

In which quadrant  and region of the abdomen would stomach pain most likely be felt?  

Arrange the following terms (related to negative-feedback) in the correct order as they operate to maintain homeostasis.   I. control center    II. effector    III. sensor (receptor)    IV. response      V. stimulus  

Given these observations concerning a transport process into a cell: I. ATP is required II. does not exhibit saturation III. solid particles are transported  

The cavity marked as #1 in figure is

Chose all that apply. Which of these processes illustrates positive-feedback?  

A patient with acute appendicitis will have a pain localized in the ———– quadrant.