Answer:
Oxygen and carbon dioxide flow through the blood in the placenta. Most of it goes to the heart and flows through the baby's body. At birth, the baby's lungs are filled with fluid. ... Increased oxygen in the lungs causes a decrease in blood flow resistance to the lungs.
A. Patient is male because there is a Y chromosome
B. 47 chromosomes
C. Down syndrome or trisomy 21
For the answer to the question above, I think the answer is that the <u><em>f</em></u><u><em>rogs have a BACKBONE.</em></u><span>
</span>which the <span>phylum like squid, snails, and jellyfish don't have. I hope my answer helped you. Have a nice day ahead!
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Chromosomal alterations are mutations that change chromosome structure. Point mutations change a single nucleotide. Frameshift mutations are additions or deletions of nucleotides that cause a shift in the reading frame.
