Methanogens are classified as A) photoautotrophs B)chemoautotrophs c)photoheterotrophs D) chemoheterotrophis E) chemotrophs​

What volume of a 0.25 m solution can be made using 0.55 moles of ca(oh)2

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

In which of the following relationships is one organism always benefited while the other organism is always harmed