I hope this help. Not gonna lie am not sure wouldn’t give you an answer am not sure about. Good luck
 
        
             
        
        
        
Answer:
True
Explanation:
Free radicals are unstable molecules that lost an electron and will seek to replace it as it gives rise. These are formed from oxygen and although about 95% of the oxygen we consume is for energy, the rest generates these harmful molecules.
Free radicals cause aging, DNA alterations and <u>cardiovascular diseases</u>, arteriosclerosis, diabetes, increase levels of bad cholesterol and <u>cancer</u>.
There are also other elements that increase the number of free radicals in our body and these are: tobacco, radiation, excessive consumption of processed foods, pesticides and industrial pollution.
 
        
             
        
        
        
I think it’s true but idk 100%
        
             
        
        
        
Explain the role of Calcium(Ca+) in askeletal muscle contraction. Role of calcium { Ca++}: By BONDING to the TROPONIN it causes the TROPOMYOSIN to MOVE from its blocking position on the active sites on the actin filaments SO the CROSS BRIDGES CAN ATTACH.
        
                    
             
        
        
        
Bipolar. Mental illness where you either have a lot of energy or none at all.
Although you are only presenting one aspect of a mental illness that could be related to more than bipolar.