Gender identity is how a person defines themselves male or female. Sexual orientation is the type of partner a person looks for and whether they are straight homosexual or bisexual
I think the answer is letter b. multivitamins. As what I have read about supplements it include vitamins and minerals and substances which come from a natural source. And also because of this substances it helps the human body maintain its well-being.
No, I have asthma myself, it is definitely NOT contagious. The difference between a person's lungs with asthma is that when they are out if breath from physical activity, their lungs aren't able to inhale as strongly as a person without asthma's lungs. 1 fact is that asthma causes people to have more mucus in their lungs, which renders it hard to breathe. 2: You can either have asthma for a year or two or your entire life. 3: severe cases of asthma make the airway in your lungs narrow very tightly and will make you need a longer lasting inhaler. 4: the amount of asthma cases grows each year, this year there are 26 million people with asthma, and 18.9 million are adults and 7.1 million are children. 5: Asthma results in 439,00 hospitalizations and 1.8 million emergency room visits annually.
(what I'm trying to say is that asthma sucks)
Answer:
Harmful mutations may cause genetic disorders or cancer. A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A mutation in a single gene causes the body to produce thick, sticky mucus that clogs the lungs and blocks ducts in digestive organs.
Mutations arise spontaneously at low frequency owing to the chemical instability of purine and pyrimidine bases and to errors during DNA replication. Natural exposure of an organism to certain environmental factors, such as ultraviolet light and chemical carcinogens (e.g., aflatoxin B1), also can cause mutations.
only a small percentage of mutations cause genetic disorders—most have no impact on health or development. For example, some mutations alter a gene's DNA sequence but do not change the function of the protein made by the gene.
