They provide the immune system with "memory" against previously encountered pathogens.
T memory cells are necessary for protective immunity against invading pathogens
Answer:
The types of waves that emanate from and earthquake are the body waves (P-waves and S-waves), and the surface waves. The surface waves travel along the suface, and are are the slowest, even though they do the most damage in an earthquake. While the P-waves travel the fastest through solids, liquids, and gases. S-waves, however only travel through solids.
Explanation:
Hope that helped hun <3
We could possibly use water as a fuel source, rather than fossil fuels (which are limited)
Science has already developed something of the sort, and with using water as a fuel source for say vehicles and such, it's inevitable for a positive change to happen because there would be less carbon monoxide; which means less polution.
Answer: Menopause.
Explanation:
Menopause is the permanent cessation of menstrual cycle which is cause by reduction in follicular activity. This occur in age appropriated women between 48 to 52 upward. Menopause presceed a period where Endocrine, biological and biological features begin to show. Period would like stop in months before Menopause and there may be symptoms of vagina dryness, night sweat and hot flashes.
