A) A flap in the heart located between each atrium and ventricle.
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I believe
1.b
2.c
3.b
4.d
5.a
6.b
7.b
8.c
9.d
10.b
        
             
        
        
        
Answer: Proteins are digested within the stomach and little intestine. Protease enzymes break down proteins into amino acids.
Explanation:
 
        
             
        
        
        
Answer:
B
Explanation:
Animals derive energy by eating plants or animals and using cellular respiration to make ATP. Plants capture energy from the sun via photosynthesis and make sugar and oxygen. They can then use the sugar to perform cellular respiration to derive energy.