Answer:
Indpendant veriable cigarette smoking on lung cancer.
Dependant veriable:The number increase
Explanation:
 
        
             
        
        
        
Hydrogen atoms are compressed
together by the enormous gravitational force
of the sun, causing them to fuse int a helium atom (which is heavier than
hydrogen), subatomic particles and enormous
release of atomic energy. The attached
picture shows the sequence of the main reaction
at the core of the sun. 
 
        
             
        
        
        
Answer:
Proteins
Explanation:
Protein describes any of the numerous large, complex naturally-produced molecules made up of one or more long chains of amino acids, in which the amino acid groups are held together by peptide bonds.
 
        
             
        
        
        
I believe that it is the old growth not sure which one but between B and D I would go with B but I am not sure (hope I helped in some way )
        
             
        
        
        
Answer:
X. Mechanisms and habits that include limit water loss.
Explanation:
Many mammals that live in dry ecosystems tend to have above adaptations because there is a shortage of water in these areas. And of course water is the most essential thing for survival.