Clubfoot describes a range of foot abnormalities usually present at birth (congenital) in which your baby's foot is twisted out of shape or position. In clubfoot, the tissues connecting the muscles to the bone (tendons) are shorter than usual.
 
        
             
        
        
        
D. i think if i get you wrong then I'm sorry
D.
 
        
             
        
        
        
Answer:
The organism to have maximum energy would be the algae since ii will be at the lowest level. so the answer is 'B'.
Explanation:
The pyramid of energy shows the flow of energy from one trophic level to other. The lowest trophic level is occupied by the producers. In this case algae acts as the producer. Krill acts as the primary consumer, followed by leopard seal as the secondary consumer and finally killer whale as the tertiary consumer. The <em>lowest trophic level </em> contains maximum energy.
As we go upwards, only 10% of the energy gets transferred to the next trophic level.
 
        
             
        
        
        
I am more of a chemistry person, but my best answer is the double-helix structure.  The DNA rotate around a central point allowing it to keep a constant distance
        
             
        
        
        
they could possibly learn the climate the animal was from or even relative dating & absolute age