Nitrogen-fixing bacteria establish symbiotic combinations with the cells of the roots of which plants?

Nitrogen fixing bacteria present in the nodules of the root of leguminous plant are–

Which one of the following combinations of events represents the correct sequence during reproduction in flowering plants?

Which nutrient is helpful in Nitrogen fixation in roots of pulse crops?

Xylem is a type of complex tissue in plants for upward conduction of water. Which one of the following xylem tissues consists of living cells?

Which of the following is macronutrient in relation to growth of plants?