Ozone gas is.made up of oxygen molecules that has three atoms (O3) it exists in polluted air. Ozone layer is located in stratosphere(one of the layers of earth's atmosphere) it is like a protective layer and prevents dangerous ultraviolet(UV)from reaching earth's surface
Duchenne muyscular dystrophy is caused by a mutation on the X chromosome, so a male gets it from his mother's X, if she is a carrier. The male child gets a Y and no X from his father, so the disease is always transmitted through the X from the mother. If a female gets Duchenne muscular dystrophy she has to have two X chromosomes, one from a carrier mother and another from from an affected father. This is virtually impossible because most males die before childbearing age and there is no way a female child can get an X from a man who does not live long enough to procreate. About eight percent of carrier women do show some muscle weakness, but they do not have the disease.
There are 15 different bird species present in a density of at least one pair per 20 acres at the same time that small trees are the dominant plant category.
<h3>What is population density?</h3>
The term population density refers to the number of organisms that are found in a place per unit area covered by the population. This includes both plants and animals.
There are 15 different bird species present in a density of at least one pair per 20 acres at the same time that small trees are the dominant plant category.
Learn more about population density: brainly.com/question/16894337
growth and replication I think
Wheezes is the noted obstruction or stumbling block of the trachea or larynx.
