बाहरी स्रोत से आने वाली ध्वनि तरंगों के जवाब में मानव कान का कौन सा हिस्सा सबसे पहले कंपन 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 ________.