<span>D) Vaccines allow for building immunity without harmful exposure because not all viruses are safe to be exposed to.</span>
        
                    
             
        
        
        
1 is b or 1/4 (I'd recommend checking a punnet square too)
        
             
        
        
        
Answer: Hey again!
 Option (a) is the correct answer.
Explanation:
Elemental form of carbon means the pure form of carbon, that is, carbon is present in its natural form.
An elemental form also means that the pure atoms are not attached to any other atom.
For example, diamond is an allotrope of carbon in which there are only carbon atoms attached to each other and no other atom is present in it.
Whereas methane has carbon and hydrogen atoms attached to each other therefore, it is not an elemental carbon. And proteins include different atoms attached to each other.
Thus, we can conclude that diamond is an example of elemental carbon.
Explanation:
 
        
                    
             
        
        
        
Answer:
5.6L
Explanation:
Given parameters: 
number of moles  = 0.25mol
pressure on gas  = 1atm
temperature  = 273K
Gas constant R = 0.0821Latm/molK 
Unknown: 
Volume of gas  = ? 
Solution: 
Using the ideal gas equation, we can solve this problem. The equation is a combination of the three gas laws: Boyle's law, Charles's law and Avogadro's law. 
It is mathematically expressed as; 
              PV = nRT
where P is the pressure
            V is the volume 
           R is the gas constant 
           T is the temperature
           n is the number of moles 
All the parameters are in the appropriate units and we simply solve for the volume of the gas; 
 
                 1 x V = 0.25 x 0.0821 x 273
                       V  = 5.6L
 
        
             
        
        
        
In arteriosclerosis, overproduction of abnormal collagen and decreased quantities of elastin lead to Decreased coronary artery perfusion.
Arteriosclerosis is a condition in which the arteries, which transport oxygen and nutrients from the heart to the rest of the body, thicken and stiffen, often limiting blood flow to the organs and tissues. Flexible and elastic arteries indicate good health. However, the artery walls can stiffen over time, a phenomenon known as arterial hardening.
The accumulation of lipids, cholesterol, and other chemicals in and on the artery walls is known as atherosclerosis. The accumulation is known as plaque. Atherosclerosis can constrict the arteries and obstruct blood flow. The plaque may rupture and cause a blood clot.
Symptoms of arteriosclerosis:
- chest pressure or discomfort (angina)
- sudden numbness or weakness in the arms or legs.
- speech slurs or speaking difficulties.
- vision briefly lost in one eye.
- weakened facial muscles
- ache while walking.
- elevated blood pressure
- renal failure
 
To know more about arteriosclerosis refer to: brainly.com/question/685228
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