Heterotrophic bacteria that develop a nutritional relationship with other organisms are…….bacteria.
a) saprophytic
b) parasitic
c) symbiotic
d) sulphur
Explanation: the relationship may beneficial for both partner (mutualism)
Bacteria living in the gut form the association of…….
a) mutualism
b) parasitism
c) commensalism
d) predation
Which of the following bacteria form symbiotic relationship?
a) Clostridium tetni
b) Streptococcus pneumonae
c) Rhizobium
d) Vibrios
Explanation: They form symbiotic relationship with leguminous plants roots for nitrogen fixation
In which of the human body the bacteria are normally present in abundance……
a) intestine
b) stomach
c) liver
d) salivary glands
In photosynthetic bacteria, which of the following is/are not released as byproduct?
a) sulphur
b) oxygen
c) both
d) none of them
In cyanobacteria, which of the following is/are released as byproduct?
a) sulphur
b) oxygen
c) both
d) none of them
