<span>Crop
is the part of the digestive system you would see in a cross-section anterior
to the gizzard in a worm. Crop is a thin wall organ that acts as a temporary food
storage chamber. The esophagus leads to the crop and the organ next to it is
the gizzard which serves as the food grinding chamber.</span>
Scientific hypothesis can be proven to create a theory but not often fact. In order to be provable it has to be probable. If its not probable it's not possible.
I'm pretty sure it's the last one (the parents cell is created during mitosis; the daughter cells are a result of the cell cycle).
Hope this helped :)
The fibrous skeleton of the heart
functions in all of the ways listed in the option, except causing direct spread
of electrical impulses from the atria to the ventricles. The fibrous skeleton
in fact supports proper coordination of atrial and ventricular contractions by
blocking direct spread of electrical impulses from atria to ventricles.
