Photosynthesis Probably Originated During the ________ Eon and Most Likely

question 56

Multiple Choice

Photosynthesis probably originated during the ________ eon and most likely used ________ as an electron donor.

• A) Proterozoic; water
• B) Archean; water
• C) Archean; hydrogen sulfide
• D) Proterozoic; hydrogen sulfide
• E) Paleozoic; water

---

Definitions:

Average Service Time

The mean time that a service system or provider takes to complete a service for a customer, often used in assessing service efficiency and planning.

Time Between Service

The duration or interval of time between the completion of one service encounter and the beginning of the next, often used in the context of service operations management.

Service Factor

A measure used in inventory control and logistics planning to determine the safety stock level required to meet a predetermined level of service.