The ductus arteriosus allows fetal blood to move from the pulmonary trunk into the aorta. The ductus venosus on the other hand is a fetal vessel that transports blood from the umbilical vein to the inferior venacava. Ductus arteriosus is a blood vessel connecting the main pulmonary artery to the proximal descending aorta. It allows most of the blood from the right ventricle to bypass the fetus's fluid-filled non-functioning lungs.
        
             
        
        
        
Answer:
All of the above are involved in moving water up to the branches and leaves
 
        
             
        
        
        
Mitosis in an eukaryotic cell cycle occurs after the G2 phase (option b). This is the final stage of interphase and during this time, the cell continues to grow as well as create new proteins. Successful completion of this phase results in the commencement of Mitosis. 
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Answer:
D-DNA molecule
Explanation:
The process of copying the sequence of  DNA nucleotide  sequences to the mRNA is called   Transcriptions. It  is the  first stage in gene expression   for protein synthesis, and<u> it involves the unwinding of the DNA double strands  molecules  by enzyme</u><u> </u>DNA Helicase into two  free strands,(by melting the hydrogen bonds between organic  bases), a process   initiated by the binding of enzymes RNA Polymerase to  the promoter sites on the DNA  template; the alignment of the mRNA  nucleotides on the  single DNA template strands in 3'-5  direction; the formation of  hydrogen bonds between the organic bases  of the template DNA  and   that of the messenger RNA single strands,(  and phosphodiesterbonds  within RNA nucleotide ), to form DNA-RNA complex. 
The copying is done in  complimentary anti parallel fashion;5'-3' prime. direction.
  The  hydrogen bonds, between the bases  DNA-RNA complexes breaks,and  the releases  the mRNA  which  exists through the nuclear pores.Thus   this <u>leads to copying of the the coded messages as seqeunce of DNA , from the DNA to the mRNA for gene expressions.</u>
 
        
             
        
        
        
By talking to me ;)))))) lol