What is the term for an atom that is electrically charged as a result of gaining or losing electrons?

If animal agriculture was eliminated, how much grain would become available for human consumption?

Spirochetes have a twisting and flexing locomotion due to appendages called

The model illustrates a process by which a substance is taken up by a cell. which statements describe the process? a. the model shows the process of endocytosis. b. the process shown in the model requires energy from the cell. c. the cell membrane in the model remains intact throughout the process. d. the model shows the process of facilitated diffusion.