by biting into the skin were the blood flows, (it knows were the veign is as it is warmer than skin with no veign
No, they breathe through their lungs.
No, its just some reptiles that obtain oxygen through their skin. Many of them breath through their lungs.
The brain of mammals keeps track of the temperature of the skin and blood to maintain a stable internal body temperature, which is crucial for the body to function properly.
Mammals lose heat because they are often warmer than their surroundings, it is a law of thermodynamics that heat flows from warm to cool.
Unlike mammals who absorb oxygen through the alveolar in their lungs, frogs are able to use their skin as a surface for gas exchange. The capillaries carry oxygen poor blood underneath the skin so that the oxygen in the air or water will be transported into the blood.
Blood is supplied to the skin through capillarity vessels
Blood is supplied to the skin through capillarity vessels
All mammals have skin.
A lancet is commonly used to collect blood by performing a skin puncture. It is a small, sharp instrument that creates a tiny hole in the skin to obtain a blood sample for testing purposes.
The physical changes from reptiles to mammals are there skin. Reptiles have dry scaly skin and mammals have smooth skin.
No, humans do not absorb oxygen through the skin in any significant amount. The primary way we obtain oxygen is through breathing, where it enters our lungs and is then transported by our blood to cells throughout the body.
No, all mammals have a respiratory system just like that of a human's. I don't deny that breathing through your skin would be really cool!