The order of flow of oxygen within the human body may be described simply. Oxygen first is inhaled through the nasal cavity and then passes through the trachea, through the bronchi and into the lungs. In the lungs, the oxygen is passed into the blood stream through the alveoli and then is carried to the heart. The heart pumps this oxygenated blood throughout the body, primarily to organs and muscle cells, where it is consumed in respiration and is converted to carbon dioxide and excreted.
        
             
        
        
        
Answer:
he options are not given. The options are;
A. 1 B. 3 C. 4 D. 6
The answer is 4 which is option C.
Explanation:
Protein recommendations is the amount of daily required dietary proteins for a person base in its weight.
Christie's Doctor recommend 40grams of dietary protein and she has already consumed 50% of it. This meant that she has consumed about 20 grams of the required dietary protein and she needed additional protein source to complete her daily requirements. Therefore, Christie needs additional four servings of snacks to meet her daily protein recommendations.
Explanation:
 
        
                    
             
        
        
        
I believe heterotrophs are organisms that get their energy by eating other organisms. These organisms are also called predators
        
             
        
        
        
<h3>Answer:</h3>
Jean has a sample of a liquid. If she changes the liquid's phase by <u>Evaporating</u> it, the molecules will spread out, allowing the sample to expand and fill a container of any shape or volume.
<h3>Explanation:</h3>
Evaporation is a kind of condensation that happens on the surface of a liquid as it turns into the gas state before approaching its boiling point. The enclosing gas must not be immersed with the evaporating matter. Evaporation is a major element of the water cycle and is continually happening throughout the environment.
 
        
        
        
Answer:
Harm to downstream fisheries, due to sedimentation of waterways from increased soil erosion. 
Explanation:
Deforestation is the reduction of forest area in a given territory, both because of nature or man-made causes.  It results in the loss of habitats for many animal and plant species, the destruction of natural peoples' habitats and livelihoods, and increases soil erosion and large floods in valleys. Often, a previously forested area becomes waste land.