Nasal cannulas and face masks are used to deliver oxygen to people who don't otherwise get enough of it. They are commonly used to provide relief to people with respiratory disorders. A nasal cannula consists of a flexible tube that is placed under the nose.The tube includes two prongs that go inside the nostrils.A face mask covers the nose and mouth. Both methods of delivery attach to oxygen sources, which come in a variety of sizes.Nasal cannulas and simple face masks are usually used to deliver low levels of oxygen to the patient.Another type of mask called the Venturi mask delivers oxygen at higher levels. Sometimes, nasal cannulas also can be used to deliver high levels of oxygen.he tube includes two prongs that go inside the nostrils. A face mask covers the nose and mouth. Both methods of delivery attach to oxygen sources, which come in a variety of sizes. Nasal cannulas and simple face masks are usually used to deliver low levels of oxygen to the patient.
After about 9 weeks, the tadpole looks more like a teeny frog with a really long tail. It is now well on it's way to being almost fullgrown! Young Frog, or Froglet. By 12 weeks, the tadpole has only a teeny tail stub and looks like a miniature version of the adult frog.
A. Jelly-like masses of eggs are called frog's spawn. Here's how frog spawn happens: A female frog lays eggs under water, usually in the spring. She may lay as many as 20,000 eggs. The male frog climbs on her back and fertilizes the eggs as they are laid.epending on the species, it can take a few weeks to a year or more for the tadpoles to grow up. frogs who live in dry places where rains are seasonal have to grow up quickly because the tadpoles will die if their temporary ponds dry up first. Copyright 1997-2015 Journey North.