Pericardial sac also known as pericardium is a cone-shaped sac
made of fibrous tissue surrounding the heart and the blood vessels. It has two
parts: the inner coat which is double-layered supporting the heart; and the
outer coat which is solid and heavily built attached to the diaphragm and the
rear part of the breastbone.
Stop using plastic straws, use paper bags, and stop using plastic water bottles
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Answer:
Gray wolves and Labrador retrievers can mate and produce offspring
Explanation:
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