Describe 2 ways the body prevents the entry of microorganisms.

• acid in stomach kills pathogens in food• skin forms a barrier / produces antimicrobial secretions• hairs in the nose trap (particles which may contain) pathogens• trachea / bronchi has mucus which traps pathogens or bronchi have cilia which waft mucus to throat to be swallowed

Answered by Fiona C. Biology tutor

1958 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What is the structure and function of neurones?


A scientist discovers a diseased tomato plant where a disease has caused discolouration in the leaves due to a decrease in chlorophyll. Explain why this tomato plant produces far less tomatoes and is much smaller than a healthy tomato plant.


Describe the various mechanisms by which expression of genes are controlled by the cell's environment.


I don't understand the difference between aerobic and anaerobic respiration


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences