Astudent views a micrograph of a cell. she observes a membrane-bound organelle with stacked cisternae, some of which appear to form membrane vesicles that travel to another area of the cell. the student is likely viewing a

Golgi Apparatus

Explanation:

The Golgi apparatus as described in the question is an organelle with stacked cisternae. They look basically like pouches or pancakes stacked on top of each other. The role of the golgi appartus is like a sorting and packaging area of the cell. It transports lipids and proteins to specific areas of the cell. Before that, it will modify them specific to their intended function and then package them in vesicles for transportation.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.