Answer:
I would first put jaws at number one because most of the other options are for mammals while some marine life has jaws too.
 
        
             
        
        
        
Answer:
A non central theme in biology is The study of chemical reactions.
Explanation:
The five central themes of biology are structure and function of cells, interactions between organisms, homeostasis, reproduction and genetics, and evolution.
 
        
             
        
        
        
Your BMI (body mass index) is 21.6, which is a normal BMI. So, you are NOT overweight. 
        
                    
             
        
        
        
The pictures are blurry, could you resend them? I can help with some in the comments
        
             
        
        
        
Answer:
sexual reproduction
Explanation:
The type of reproduction in which the ovum and the pollen of a flower fuse together is refer to as sexual reproduction.
<u>The ovum of a flower is equivalent to the female reproductive part while the pollen is equivalent to the male's reproductive part. During fertilization, the female reproductive part (the ovum) fuses with the male's reproductive part (the pollen) to produce a zygote.</u>