Answer:
B. Sternum
Explanation:
The sternum (or breastbone) is a flat bone in the thorax's anterior area. It has a 'T' shape and is located in the center of the chest. The sternum, which is part of the bony thoracic wall, protects the internal thoracic viscera, such as the heart, lungs, and oesophagus. 
Here is a picture from the internet.
 
        
             
        
        
        
Answer:
Reproducing is fast for some animals, but can mess up their DNA and genetics. Humans and other aninkas take a while. It has a better chance of perfect genetics and heredity from parent, this goes along with sexual and asexual reproduction.
Explanation:
 
        
             
        
        
        
Adenine, thymine, guanine, and cytosine
        
             
        
        
        
<u>Answer:</u>
<em>Polymers of amino acids can be both fibrous as well as globular protein. Hemoglobin is a globular but the collagen is the fibrous protein both being the amino acids.</em>
<u>Explanation:</u>
- <em>Soluble in water: </em>globular protein is soluble in water.
- <em>intermediate filaments:</em> fibrous protein
- <em>Insoluble in water:</em> fibrous protein is insoluble in water.
- <em>function as structural proteins in the cell:</em> fibrous protein.
- <em>some function as enzymes: </em>globular protein.
- <em>structure is somewhat spherical;</em> globular protein.
- <em>structure is rod-like:</em> fibrous protein