Question

plz answer this question (std 9th)
It is soooo necessary to help me
iam very thank full for you my daer friends​

Answer 1

Answer:

Following the first arrow towards right:

1. Roots

2. Root hair

3. Rhizobium

4. Bacteria in root nodules

5. Legumes

1. Rhizobia attacks the plant by attaching themselves to the root hairs.  

2.This leads to the formation of an infection thread that results in the entry of the bacteria into the root cells.  

3. Bacteria grows and multiplies in number within the root cells resulting in the formation of bacteroids.

4.The root cells enlarge and gradually give rise to the root nodules.

__________________

Hope it helps you!!

:)