AP BIOLOGY

Detailed explanation-1: -Food picked up by the beak enters the mouth. Chickens do not have teeth, so they cannot chew their food. However, the mouth contains glands that secrete saliva, which wets the feed to make it easier to swallow. Also, the saliva contains enzymes, such as amylase, that start the digestion process.

Detailed explanation-2: -Chickens don’t have teeth and they’re prey animals, so they can’t waste much time chewing. Instead, they swallow food quickly and store it away in their crop, a pouch-like organ meant solely for storage. It’s the first pit stop for her layer feed. Within the crop, very little digestion occurs.

Detailed explanation-3: -Chickens are predominantly foragers, meaning they spend most of their time grazing for grasses, weeds, and seeds. While foraging, chickens will use their beaks to peck at or beat food against the ground. With this method, they can break up their food into smaller pieces.

Detailed explanation-4: -Birds have no teeth, so they can’t chew their food. Instead, they just drop it down their throat. Some birds, such as pigeons and game birds, have a pouch in their throat called the crop. Here they store food when feeding in a hurry, ready to digest it later.

Detailed explanation-5: -When you chew your food, it gets broken down into smaller pieces which are easier to digest. When mixed with saliva, chewing allows your body to extract the greatest possible amount of nutrients from the food you eat.