An antigen is usually a _____. a. carbohydrate c. sugar b. protein d. amino ...

Author Question: An antigen is usually a _____. a. carbohydrate c. sugar b. protein d. amino ... (Read 130 times)

jessicacav

Hero Member
Posts: 558

on: Jul 21, 2018

An antigen is usually a _____.

a. carbohydrate c. sugar
b. protein d. amino acid

Question 2

Which of these is a protection against pathogenic invasion?

a. low pH c. mucus films
b. surfactant proteins in lungs d. all answers

strudel15

Sr. Member
Posts: 324

Reply #1 on: Jul 21, 2018

Answer to Question 1

B

Answer to Question 2

D

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jessicacav

Hero Member
Posts: 558

Reply #2 on: Jul 21, 2018

Both answers were spot on, thank you once again

strudel15

Sr. Member
Posts: 324

Reply #3 on: Jul 21, 2018

Great! Please up vote

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