Explanation:
%DV label= 27% 
1 cup of cooked collared greens= aprx 266.60 mg of Calcium
Assuming Clara is... 
- a teen, her required adequate intake (RAI)=  1300 mg/ day
- an adult, her RAI= 1000 mg/day
For teenaged Clara
∵27 % DV= 270mg
% daily Calcium=   = 20.8 ≈ 21%
 = 20.8 ≈ 21%
=0.21 
<u>21% of her daily calcium needs is in a cup of cooked collard greens.</u>
Calcium is an essential mineral required by the human body, it is involved in cell signalling, muscular function and homeostasis. Along with fats, fiber, vitamin A and C and iron, calcium makes up part of a recommended daily intake target or DV- these are integral to a balanced diet. 
Learn more about energy storage at brainly.com/question/523624
Learn more about homeostasis at brainly.com/question/1601808
#LearnWithBrainly
 
        
             
        
        
        
Answer:
Hey there!
I believe that David's prediction would be: If the amount of pollutants in the atmosphere reached an amount unhealthy for the salamanders, then the salamander population would decrease.
Let me know if this helps :)
 
        
             
        
        
        
The pancreas is connected directly into the small intestines and gallbladder.
Enzymes that are produced by the pancreas are secreted directly into the small
<span>intestine.</span>
        
             
        
        
        
Well If the Salmon die from lack of food from polution or something, and other animals benafit from the nutrience they carry. the rest of the ecosystem might parish, i hope that helped im not sure what was wanted
 
        
             
        
        
        
DNA analysis helps scientists classify similar animals by the evidence of relatedness in general the more derived genetic characters to organisms share the more closely repeated they are...In other words “DNA helps scientists by comparing the similarities in each animal/person’s DNA.