Spherically shaped bacteria are known as a. bacilli. b. spirilla. c. spirochetes. d. cocci.

They both have rock surfaces

Processes above and be sure to mention the movement of electrons and energy as the carbon atom moves from one reaction to another.

Interacting group of various species in a common location. for example, a forest of trees and undergrowth plants, inhabited by animals and rooted in soil containing bacteria and fungi, constitutes a biological community.

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.