Answer:
Whole brain death occurs when the BRAINSTEM ceases to function.
Explanation:
In the US, whole brain death = legal death. Most people consider that a person is brain dead when the cerebrum, or the higher brain, is dead because the person is not able to think or have control over his/her body, but legally you are brain dead only when the brainstem ceases to function. The brainstem is responsible for keeping you alive and performing the most basic bodily functions like breathing and keeping your heart beating. But once it fails, you are legally dead. Even if your body could still survive using a ventilator and other devices, your brain has ceased to work and you wouldn't be able to survive if you were unplugged.
We define chemical reaction is a process in which old bonds break and new bonds are formed . So from the definition you can get the result easily
Common examples of fossil fuels include natural gas<span> </span>oil<span> </span>peat<span> and </span>coal<span>These fuels are organic biomass extracted from the remains of primitive organisms that roamed the planet millions of years ago</span>
Deforestation affects entire ecosystems, including the organisms that live in them.
In <em>rainforests</em>, deforestation has devastating effects. Wildlife diversity, for instance, tends to decrease as species are displaced from their natural habitats. Animals go to new places in search of shelter and food. In many cases, they die of hunger or are threatened with extinction due to the spread of diseases.
Deforestation also affects rivers, different streams of water and the soil. The soil, which provides essential nutrients for vegetation, is exposed to more sunlight and heavy rainfalls that erode it. Erosion makes the soil drier and infertile.
Answer:
Oxygen enters the lungs through the trachea, which branches into two tubes called the bronchi, which lead to the lungs.
