लसीका (Lymph) मुख्य रूप से निम्नलिखित में से किस घटक की कमी में रक्त से भिन्न होता 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 ________.