According to the endosymbiotic theory, large prokaryotic cells may have engulfed smaller prokaryotic cells over 1.5 billion years ago. if the smaller cells survived, the larger cells may have eventually evolved into eukaryotic cells. how would you describe the relationship between the original prokaryotic cells?

A predatory or parasitic relationship

Explanation:

According to the endosymbiotic theory, the larger prokaryotic cell may have been predating on the smaller prokaryotic cell, before a mutual relationship developed later on. Another hypothesis is that it was probably a parasitic relationship. Over time, the phagocytosed cell survived inside the larger cell and a symbiotic relationship developed over time because it provided an evolutionary advantage.

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.