निम्नलिखित में से कौन प्राकृतिक इंद्रियों का उपयोग करके आस-पास के वातावरण के बारे में जानकारी एकत्र करता 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 ________.