گاما رو نصب کن!

{{ number }}
اعلان ها
اعلان جدیدی وجود ندارد!
کاربر جدید

جستجو

پربازدیدها: #{{ tag.title }}

جستجوهای پرتکرار

میتونی لایو بذاری!

The graph shows the antibody concentration in blood following vaccination and a booster vaccination 28 days later. 

Which statements about the changes in antibody concentration are correct?

1 Antibody concentration falls after the primary response because antibodies are broken down and are no longer being produced.

2 The secondary response is more rapid due to memory B cells produced from activated B cells in the primary response.

3 The secondary response lasts longer than the primary response because memory B cells live longer than plasma B cells. 

1 ) 

1, 2 and 3

2 ) 

1 and 2 only

3 ) 

1 and 3 only

4 ) 

2 and 3 only 

تحلیل ویدئویی تست

تحلیل ویدئویی برای این تست ثبت نشده است!