lungs they do have lungs they come up to breath
Alligators are air breathers. They inhale and exhale through their nostrils. Their lungs absorb oxygen from the air that they inhale.
A penguin is a flightless bird it use lungs for in take of Oxygen in its body.
No. They breath in oxygen, like all animals.
lungs
Mammals use lungs to collect oxygen from the air, fish use gills to collect oxygen from the water.
They inhale air and exhale carbon just like humans.
They use their teeth.
The organ that takes in oxygen is the lungs. While in breathing process, oxygen passes through the lungs from the air by means of inhaling.
If you pass out and/or become unconscious, your oxygen saturation level based on saturation in the correct vital organ systems is probably not in the range it should be.
Alligators and crocodiles use their tales to swim rapidly. They are able to propel themselves further in the water using the tail.
lung
No, oxygen is not an organ at all. It's a gas. However, it is inhaled and exhaled through the respiratory system.