Answer:
a. A hypothesis that does not generate a testable prediction is not useful.
Explanation:
In the scientific method, we generate a hypothesis to explain a phenomenon. After this, it is necessary to create a method to test the hypothesis and make predictions. Moving forward, we test this methodology, generating results and reject or not reject the hypothesis. If the hypothesis can't be tested, the scientific method can't be applied.
 
        
             
        
        
        
Answer: 
High-Pressure Center
Explanation: 
To get this answer, this question and answer is based on the <em>Coriolis effect</em>. The <em>Coriolis effect</em> causes the air to rotate in a clockwise direction. When it turns clockwise direction, it will always be high pressure.
 
        
             
        
        
        
The reason why stars does not die when it is there time is because they tend to fuse in different and more heavier elements. In that way, it prevents them from dying for they were able to have the components of different elements, extending their lives and prevent themselves from dying on the time that they were supposed to.
        
             
        
        
        
Explanation:
Proteins 
<h2>Learn at brainly </h2>
 
        
             
        
        
        
Answer:
Ion pumps can be distinguished from ion channels on the basis that ion pumps actively transport ions against a concentration gradient, while ion channels allow ions to passively flow down a concentration gradient.
Explanation: