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When a new antigen is presented to the immune system, an immune response leads to antibodies are released. The second time this happens it is much faster - explain why

In the primary immune response, there is antigen presentation followed by clonal selection, expansion and differentiation of helper t cells. This leads to plasma cells releasing antibodies and the develop...

MR
Answered by Maxine R. Biology tutor
2425 Views

How do I use the imperfect and preterite tenses together to describe a completed event?

Well, let's start with an example. ej. Estaba atravesando la calle y de repente un coche se estralló contra un árbol. (ex. I was crossing the road and all of a sudden a car crashe...

GK
Answered by Gregory K. Spanish tutor
1758 Views

What is the meaning of actus reus and mens rea?

Actus reus and mens rea are latin terms used in Criminal Law in England and Wales. Actus reus refers to the, "guilty act" of a crime, and mens rea refers to the, "guilty mind" of a cri...

EG
Answered by Erika G. Law tutor
8041 Views

What are your hobbies

Get student to say the hobbies they do and what skills they believe they have developed from taking part in the activity to show admissions what key qualities make them suited to the course they have appl...

ND
1947 Views

List the differences between and eukaryotic and prokaryotic cell

Eukaryotic cell: Linear chromosomes, DNA bound to proteins (histones), DNA found within a nucleus (nucleus present), membrane bound organelles, cell wall not present in animal cells but present in plant a...

ND
Answered by Niamh D. Biology tutor
2100 Views

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