Answer:Option B
The memory response is due to long lived cells that can respond rapidly to second exposure.
Explanation:
Immunological memory is the ability of the immune system to quickly identify and remember an antigen from a pathogen that the body has encountered before and initiate a faster immunological response upon a reencounter with the particular antigen. This dependents on colonial selection.. The memory cells have a long life span and can remain in the body for a long time. When it encounter the antigen its previously encountered for the second time, they mobilize quickly and become plasma cells, these secrets a lot of antibodies and cause a stronger reaction to defend against such antigen in a short time.
Answer:
The climate system is highly complex, as are the human institutions that are affected by and that must respond to climate change. The difficulty of developing sound strategies for responding to climate change, and of building public support for such strategies, stems in part from the inherent complexity of the issue.Explanation:
Easy the pouch expands when the mother kangaroo has three kids so whatever how many whatever how many kids the kangaroo has is how much the pouch called
Answer: The lagging strand glows more because its RNA primer is nearer the replication fork.
During DNA replication process, both the strands of DNA are replicated simultaneously in opposite direction. One strand is replicated continuously and known as leading strand while the other strand is replicated discontinuously and known as lagging strand. The leading strand has only one primer attached to it while the lagging strand