Height can be affected by many factors, such as age, lifestyle, medical, etc. so two tall parents can have a short child
        
                    
             
        
        
        
The statement is True.
Dyspnea has a multi-factorial origin, resulting from bronchospasm or vasospasm, disturbances in pulmonary circulation, immobility or diminished respiratory excursion of the diaphragm, atelectasia and/or pulmonary infarction, anoxia, or impairment of cardiac function. 
Dyspnea, chest pain, and cough are the most frequent symptoms of Pulmonary Embolism(PE), while fever, tachycardia, abnormal pulmonary signs, and peripheral vascular collapse are the most common physical findings. 
Pulmonary embolism (PE) occurs when a blood clot gets stuck in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often start in the legs and travel up through the right side of the heart and into the lungs. This is called deep vein thrombosis (DVT).
Clot in the lung circulation (pulmonary embolus): Breathlessness is usually sudden and associated with rapid breathing and may be accompanied by chest pain.
To learn more about Pulmonary Embolism(PE) here
brainly.com/question/4541755
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The first top one is right
        
             
        
        
        
Answer:
An ecosystem only has a certain amount of resources to support a certain number of organisms.
Explanation: 
An ecosystem consist of resources and organisms. Resources are the material which are responsible for the survival of living organisms in that ecosystem. Examples of resources are light, water, oxygen and food substance. In the absence of these resources, organisms will die. 
 
        
             
        
        
        
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