Answer:
Penicillin binds and inhibits bacterial enzyme DD-transpeptidase.
Explanation:
Penicillin is made up of 4 rings of β-lactam and acts by binding to DD-transpeptidase of bacteria. The DD-transpeptidase facilitates the cross-linking of the peptidoglycan cell wall of bacteria. This leads to malformation of the protective cell wall of the bacteria and causes it to lyze and die.
 
        
             
        
        
        
I believe animals that possess homologous structures probably  evolved from the same ancestor. Homologous structures are similar because of common ancestry.  A homologous structure is an example of an organ or bone that appears in different animals, underlining anatomical commonalities demonstrating descent from  a common ancestor. 
        
             
        
        
        
Answer:
False
Explanation:
-Carbon has 4 electrons in its outer shell
-It can achieve a full outer shell by forming Covalent Bonds
 
        
             
        
        
        
I believe the child is demonstrating Animism.
Animism is belief in innumerable spiritual beings concerned with human affairs and capable of helping or harming human interests. It is a belief that all things have a spirit or soul, including animals, plants, rivers, mountains or feared or in some way attended to. Animists believe each animal is a powerful spirit that can help or hurt them and are to be worshipped or feared or attended to.