Examples of physical changes in properties are melting, transition to a gas, crystallization, etc
        
             
        
        
        
Answer:
The early stages of embryo development in fish and humans look strikingly similar while insects develop very differently compared to both fish and humans,
Explanation:
It tells you that fish and humans have very similar embryo development (fetus development) while humans and insects develop very differently. Therefore, that supports the argument that humans are more like fish than insects. 
 
        
             
        
        
        
Answer:
The name of the monomer in the polymer polythene is:
Explanation:
 Ethylene Or Ethene
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The hydrosphere is all water on earth, the lithosphere is the crust and upper mantle, the biosphere is all life on earth, and the atmosphere is all the gases surrounding the earth.