R R Rr is the result of 1st punnet square and the genotype used to produce f2
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I think the correct answer would be A. The yolk sac becomes the placenta. It is membranous sac that is attached to the embryo. It provides all the nutrition and the blood cells needed by the embryo. It is also called the umbilical vesicle.
The drugs that are found are <span>Tar, </span><span>Carbon monoxide,</span><span> Nicotine and</span><span>Emphysema </span>
The answer is the moon because it’s closer than any other celestial body.
Answer:
The myogenic heart is the characteristics of vertebrates where continuous rhythmic contraction occurs. The myogenic heart is the intrinsic property of the cardiac muscles. Each contraction of the heart muscle regulates the flow of blood in the form of a pulse or heart rate.
Explanation:
i hope its helps