The difference between these three types of zebras is only about where do zebras live and the answer is that they live at different places. One type of zebra wants to live on mountains and is known as a mountain zebras. Second type lives on plain, grassy lands and is called as Burchell's zebras. Third type of these animals is better known as Grevy's zebras. These zebras are the largest of all three types of the species.
Vulvar cancer. HPV can also cause cancer of the vulva, which is the outer or external part of the female genital organs. Nearly 7 out of 10 vulvar cancers and almost all vulvar pre-cancers are linked to infection with the high-risk HPV types.This is a much less common cancer than cervical cancer.hese types are called âhigh-riskâ because they can cause cancer. Doctors worry more about the cell changes and pre-cancers linked to these types, because they are more likely to grow into cancers over time. Common high-risk HPV types include HPV 16 and 18.
A retrovirus is a virus that uses RNA as its genetic material. When a retrovirus infects a cell, it makes a DNA copy of its genome that is inserted into the DNA of the host cell.There are a variety of different retroviruses that cause human diseases, including the common cold, some forms of cancer, and AIDS.t uses an enzyme called reverse transcriptase to become part of the host cells' DNA. This allows many copies of the virus to be made in the host cells. The virus that causes AIDS, the human immunodeficiency virus (HIV), is a type of retrovirus.