Stretch reflexes are important for maintaining and adjusting muscle tone for posture, balance, and locomotion. The patellar reflex is a specific example of a stretch reflex test.
Which of the components is the integration center of the patellar reflex arc?

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.

answer australia and antarctica;

answer/// the nucleoid region contains dna; ///