Question

3. In legumes, the root nodules contain
bacteria.
a) Rhizobium
b) Diplococcus
c) Bacillus
d) Lactobacillus​

Answer 1

Explanation:

rhizobia

Leguminous family

They contain symbiotic bacteria called rhizobia within the nodules, producing nitrogen compounds that help the plant to grow and compete with other plants. When the plant dies, the fixed nitrogen is released, making it available to other plants and this helps to fertilize the soil.

Answer 2

Answer is -

(a) Rhizobium