The endosymbiosis hypothesis proposes that a. a small cell lived inside a larger cell to the benefit of both cells. b. two cells merged into one cell, improving the enzyme function of the new cell. c. two separate cells worked cooperatively and one benefited from the other. d. a large cell engulfed and digested a smaller cell, exposing its enzymes for use by the larger cell. r

The correct answer is option - a.

Explanation:

The endosymbiosis hypothesis is an explanation that stats that the smaller cells are engulfed or incorporated inside a larger cell and over a period of time they developed characters that are beneficial for both of the cells.

The best examples of the endosymbiosis hypothesis are the development or evolution of the eukaryotic cells through the process of endosymbiosis in which different smaller prokaryotic cells engulfed by larger cells that finally developed into chloroplasts and other organelles.

Thus, the correct answer is option - a.

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

a = executive branch; b = judicial branch