So its acquired immunity and the cells responsible are the B lymphocytes that produces antibodies against the virus. Memory is keep since first encounter of the virus by the immune system by way of the antibodies that was initially produced. The antibodies are there already, which makes it fast to act upon when expose again.
A leaf is an organ because the leaf is made of lots of tissues. It helps the plants.
A lot of things. who you hang out with, peer pressure, home life
<span>his therapist is using exposure therapy.
Exposure therapy is a psychotherapy that makes the patient exposed to the thing that they fear that used for patient with a phobia. It could be done by making patient simulating the condition or even looking at a photo. In this case, Rand is having a claustrophobia.</span>
