Answer:
Physiological reactions to stress in the alarm stage include: <em>increased heart rate and blood pressure, dilated pupils, rapid and shallow breath, and increased cortisol levels.</em>
Explanation:
Hans Seyle, a medical doctor proposed a model called the General Adaptation Syndrome (GAS) to explain the effects and stages of coping with the stress. The GAS model has three stages, known as:
1. Alarm stage
2. Resistance stage
3. Exhaustion stage
The <em>alarm</em> stage is the first stage of responding to stress. During this stage, the fight-or-flight response is activated when an individual is experiencing stress. This stage involves the following physiological reactions:
1. Increased heart rate
2. Increased blood pressure
3.  Dilated pupils
4. Rapid and shallow breath
5. Increased cortisol levels
 
        
             
        
        
        
The right answer is Nutrients and water.
All unicellular organisms such as bacteria and fungi need water, a source of energy, a source of carbon, a source of nitrogen and mineral elements. These basic needs are sufficient to allow the nutrition of bacteria qualified as prototrophs. Some bacteria called auxotrophs require, in addition to basic needs, the presence of growth factors.
 
        
                    
             
        
        
        
The answer is C. A catalyst speeds up the rate of a chemical reaction. However, it is not consumed during the course of the day.
 
        
             
        
        
        
Answer:
D
Explanation:
Your brain sends out the commands to the effectors in the body, but the sensors around the body send information to be processed in the brain about equilibrium. 
 
        
             
        
        
        
Answer:
From the research I did, I believe the answer is A.
Explanation:
I really hope this is helpful c: