Question

what factor controls the opening and closing the stomach and how​

Answer 1

$\huge\tt\red{✯Ꭺηʂwϵя✯}$

The pyloric sphincter is a small piece of smooth visceral muscle that acts as a valve and regulates the flow of partially digested food from the stomach to the duodenum. The opening and closing of the sphincter is controlled by peristaltic waves produced by the stomach during the digestion process.

ɢʟᴀᴅ ᴛᴏ ʜᴇʟᴘ ʏᴏᴜ ꨄ︎.

Answer 2

Answer:

Opening and closing of stomata is caused by Guard cells. This is caused by the changing of turgidity of guard cells