100% ऑक्सीजन के लंबे समय तक संपर्क में रहने से फेफड़ों को होने वाली क्षति (हाइपरऑक्सिया) मुख्य रूप से किसके द्वारा होती है?

Which digestive hormone inhibits both gastric secretion and motility, stimulates insulin release, and is secreted mainly when fat is present in the duodenum?

The repeated sequence of gradual onset of apnoea followed by gradual restoration of respiration is called ________.