SAR11 bacteria are now thought to constitute about ________% of all microbial life on earth.

A. 75
B. 10
C. 5
D. 25


Answer: D

Biology & Microbiology

You might also like to view...

Hepatitis A spreads via

A. the respiratory route. B. blood transfusion. C. body fluids. D. the fecal-oral route.

Biology & Microbiology

Perception of salty tastes occurs at the level of the taste bud.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Archaea have histone proteins that are homologous to the histone proteins found in eukaryotes. Thus far, available evidence indicates that archaeal histone proteins play a role in which function?

What will be an ideal response?

Biology & Microbiology

What chemical causes death in many eukaryotes because it blocks Cytochrome c oxidase?

A. cyanide B. copper C. carbon monoxide D. oxygen E. iron

Biology & Microbiology