Do autotrophs do cellular respiration?

Which of the following would most likely be key to gathering evidence that the rna world hypothesis is valid? creation of suitable environments for long-term study of single-celled organisms simulation of early earth conditions and long-term study of the resulting molecules development of a system for studying the microsphere's ability to absorb additional molecules categorization of the different specific conditions that result in the development of microspheres

The shift of a vehicle's weight around its center of gravity is known as

Depending on the organism the number of in a cell may change