Youngest to oldest would be: 3, 4, 1, 5, 2. Since it's from the bottom, the ones furthest from the bottom would be the youngest at the top. The oldest fossils would be closest to the bottom.
        
             
        
        
        
The mantle has properties of both liquids and solids
        
             
        
        
        
The Male Reproductive Organs: Stamens are the male reproductive parts of flowers<span>. A stamen consists of an anther and a filament. The pollen consists of the male reproductive cells; they fertilize ovules. 
</span>[You spelled anatomy wrong]
        
             
        
        
        
Answer:
i think its eather A or D
Explanation:
(its most likely A)