The jaws of the whales are modified into __ to sieve the water and trap minute planktonic organisms.
The jaws of the whales are modified into
Baleen is a filter-feeder system inside the mouths of baleen whales. The baleen system works when a whale opens its mouth under water and takes in water. It then pushes the water out, and animals such as krill are filtered by the baleen and remain as food source for the whale. Baleen is similar to bristles and is made of keratin, the same substance found in human finger nails and hair. Some whales, such as the bow head whale, have longer baleen than others. Other whales, such as the gray whale, only use one side of their baleen. These baleen bristles are arranged in plates across the upper jaw of the whale. Baleen is often called whale bone.
Baleen is a filter-feeder system inside the mouths of baleen whales. The baleen system works when a whale opens its mouth under water and takes in water. It then pushes the water out, and animals such as krill are filtered by the baleen and remain as food source for the whale. Baleen is similar to bristles and is made of keratin, the same substance found in human finger nails and hair. Some whales, such as the bow head whale, have longer baleen than others. Other whales, such as the gray whale, only use one side of their baleen. These baleen bristles are arranged in plates across the upper jaw of the whale. Baleen is often called whale bone.
