Answer:
Hemoglobin!
Explanation:
Hemoglobin is the component that carries O2 in blood. Very important for the body!
 
        
             
        
        
        
Answer:
B
Explanation:
Competition is defined as an activity done by two opposing sides, both of which are trying to do better than the other.
 
        
                    
             
        
        
        
We have Protons and Neutrons in the nucleus of an atom, Protons are positively charged, neutrons are non-charged particles.
        
             
        
        
        
The idea was that fertilizing the ocean and seas would lead to the in increase growth of phytoplankton population.
The oceanic plants do not release carbon dioxide into the air when they die because the sinks into the sea carrying with them the carbon dioxide for several centuries. This would then decrease the levels of carbon dioxide from the air as plants absorb carbon dioxide from the air during the process of photosynthesis. 
 
        
             
        
        
        
So what roles do society, politics, and economics play in science?Economics determines how much money is available to fund scientific research. Certain federal grants come directly out of the national economy, which determines if certain research projects can continue or are cut off.Politics affect science by passing some bills that directly affects science, congressmen can determine whether those funds from the economy will be used for research or not. Just a side note: wealthy lobbyists control alot of what politicians do, by donating millions into their election campaigns. Society affects science by our citizens democratically electing those politicians that we think will or will not endorse scientific research projects. For example, embryonic stem cell research has been under fire by conservatives for taking future babies' cells to study. Liberals, however, tend to be in favor of change and new advances scientifically
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if you need it shorter "Society, made up of the country's citizens, can influence science by electing politicians (president and congressmen); the politicians can then affect the economic funding of scientific research, either by increasing or decreasing government grants to scientific projects."