Speciation occurs when: a. two populations become geographically isolated

b. enough differences accumulate between two populations that they can no longer interbreed

C. gene mutations accumulate

d. all of the above

D. all of the above

Explanation:

I believe that it is C.

Explanation:

please tell me if I'm wrong

the cytokine-activated janus kinase (jak)-signal transducer and activator of transcription (stat) pathway has an important role in the control of immune responses. dysregulation of jak-stat signaling is associated with various immune disorders.

cellular respiration oxidizes food into energy in the form of atps.

glycolysis (6 c hexose) > 2x atps are used > 6c hexose biphosphate > 2 x 3c triphosphate >

2 x 3c pyruvate (2x nadh produced from nad) and (4x atp produced)

pyruvate actively pumped mitochondrial matrix.