Question

sprical system in crop full form​

Answer 1

Answer:

Oxygen and carbon dioxide gases are exchanged through a network of tubes called tracheae. Instead of nostrils, insects breathe through openings in the thorax and abdomen called spiracles. Insects that are diapausing or non-mobile have low metabolic rates and need to take in less oxygen

Answer 2

Answer:

crop full form is cultivated rotation of protection