The answer is A because they are parts of algae
<span>The
hormones involved in gastric regulation are released from the stomach
and the small intestine. Gastrin has a stimulatory effect on parietal
cells and chief cells and is released in the presence of partially
digested peptides. The intestinal hormones, cholecystokinin and
secretin, have inhibitory effects on parietal cells and chief cells. In
addition, cholecystokinin release requires the presence of carbohydrates
and lipids.</span>
If two angles are supplementary to the same angles then they are congruent.
For much of the last quarter century, the leading theory of the driving force behind tectonic plate motions envisaged large scale convection currents in the upper mantle, which can be transmitted through the asthenosphere.
I believe it is temperature or rainfall. All of the factors are improtant but temperature comes first, cuz the temperature can also determine the air, and soil doesn't make a difference. Longitude doesn't have to do with an ecosystem.
