Answer:
the left atruim
Explanation:
Oxygen-rich blood flows from the lungs back into the left atrium (LA), or the left upper chamber of the heart, through four pulmonary veins.
Females have two X chromosomes. And males have an X and a Y chromosome. The Y chromosome in males is shorter than an X chromosome. Because the size of the y is less than the size of the X there is less nucleotides that making up the dna of the chromosome. (A chromosome is condensed Double strand DNA)
The genotypes for the parents should be RR and rr. I hope this helps!
True, as to why your doctor recommends you to eat more vegetables or go outside among other things to get more vitamins and stay healthy.
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