Question

What conclusion can you draw from the data? a. All Rhizobium strains have a similar, highly positive effect on plant growth. b. Some Rhizobium strains are much more effective at promoting plant growth than other strains; the most ineffective strains have little positive effect. c. Some Rhizobium strains are much more effective at promoting plant growth than other strains; however, even the most ineffective strains have a significant positive effect. d. None of the Rhizobium strains used in the study have a substantial positive effect in promoting plant growth.

Answer 1

Rhizobium is a bacterium that has positive effects on plant growth. Different strains display a wide range of effectiveness, from a little positive effect to a massive one. The strains used in the study did not show a positive effect promoting plant growth, so we could say that they ARE NOT Rhizobium strains and need to be properly identified.

Step-by-step explanation: