Treponema and Borrelia
A)are luminescent.
B)are endosymbionts.
C)are spirochaetes.
D)are both easily grown on artificial media.

Question

Quizplus · Accepted Answer

Treponema and Borrelia are both members of the phylum Spirochaetes, which are characterized by their spiral or helical shape.

Answer: D 
 Treponema and Borrelia can both be grown on artificial media under specific conditions, although they are considered fastidious organisms and may require enriched media or specialized growth factors.