The difference is that secondary succession occurs when some vegetation and soil remaining after the disturbance, whereas primary succession occurs when very little or no vegetation or soil is present. 2 people found this useful.
The Gardasil dosage is the same for individuals age 9 to 26, regardless of sex, weight, or age. Interested in a Discount on Gardasil? Our free DiscountRx savings card can help you and your family save money on your prescriptions.
All three vaccines are given through a series of three injections into muscle tissue over a 6-month period. In October 2016, the FDA approved a 2-dose schedule for boys and girls initiating vaccination with Gardasil 9 at ages 9 to 14 years (the second dose is to be administered 6â12 months after the first).