Afactor that is manipulated in an experiment is a dependent variable.
a. true
b. false

Mike has a problem with his testosterone. he is unable to produce enough. which will most likely be affected by his inability to produce testosterone? check all that apply.

Cells destroy body cells infected by a virus or bacteria.

Which type of respiration takes place when there is no oxygen present? a. anaerobic b. mitochondrial c. cellular d. aerobica. anaerobic