Our first line of defense are barrier __________ that block pathogen entry. Once a pathogen makes its way across these barriers, ___________ blood cells such as Mast Cells recognize these pathogens and release __________ and other molecules that lead to recruitment of other immune cells and ____________ .

Our first line of defense are barrier ____ that block pathogen entry. Once a pathogen makes its way across these barriers, _ blood cells such as Mast Cells recognize these pathogens and release and other molecules that lead to recruitment of other immune cells and ______ .

BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)

10th Edition

ISBN:9781305967359

Author:STARR

Publisher:STARR

Chapter34: Immunity

Section: Chapter Questions

Problem 4SA

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