How interactions can both be beneficial and harmful to the
organism in a community.

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

Efficiency is the percent of work put into a machine by the user (input work) that becomes work done by the machine (output work)

What best describes lactic acid fermentation?