125k views
0 votes
Which of the following is a surface barrier to infection?

skin
antibodies
antigens
lymph nodes

User Ddango
by
5.4k points

2 Answers

5 votes

Answer:

SKIN.

is your answer

User LaYer Sutachad
by
5.2k points
6 votes

the answer is >skin< antibodies are used to combat infection

User Nacho Mezzadra
by
5.3k points