The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Answer:
The answer is Eurasia, North America, Africa, and South America.
Explanation:
B: A mutation in one of G5W's parents, during gamete formation, created an X-linked dominant disease allele.
You need to analyze the sex gametes.
Boys are XY
Girls are XX
If you have an X-linked dominant disease you need only one affected X gamete to have the disease.
The mother has XX' where X' is de affected and reproduce with a healthy man XY and breed unhealthy boys, but because of the heterozygous gametes you could also have healthy ones XX and XY
Explanation:
The act of aspiring or ardently desiring; an ardent wish or desire, chiefly after what is elevated or spiritual (with common adjunct adpositions being to or of)
Does not have a nucleus. The prokaryotic cell's chromosome float around the cell itself.
