Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges. This contraction creates a vacuum, which pulls air into the lungs.
A person's original chromosomes and their component genes constitute that person's genotype (Option a is correct).
<h3>What is a genotype?</h3>
A genotype can be defined as the genes and their variant (alleles) contian in a given nucleotide sequence of DNA, which can be represented by a linear chromosome.
The genotype may contain only a few genes in small chromosomes (e.g., plasmids) or many genes in linear human chromosomes (over more than 1000 genes).
In conclusion, a person's original chromosomes and their component genes constitute that person's genotype carried out by the individual and his/her cells (Option a is correct).
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Answer:Myocardium
Explanation: Myocardium is the middle layer of the heart wall. It is also the muscle tissue of the heart.
Myocardium is the thickest layer of the heart wall. It is madeup of cardiac muscle cells. These muscle cells possess contracting capability like other muscle cells.
This is a trick question there is no there name for it
