Science, asked by vamaraju678, 7 months ago

Answer 17 & 18 questions with the help of this paragraph.
The plants having root nodules secrete chemicals to attract
(17) into the surroundings
of roots and form a symbiotic relationship. These chemicals seal the wound and help the plant to
recover from injury. These chemical / compounds are called
(18).​

Answers

Answered by mahir60
3

Explanation:

The root nodules contain the rizobium bacteria which help in the fixation of nitrogen gas

hence, Nitrogen gas is excreted by root nodules

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