1 Answer

Related questions

asked Aug 9, 2018 177k views

Michael Cramer asked Aug 9, 2018

8.4k points

1 answer

0 votes

177k views

asked Apr 8, 2020 227k views

Rys asked Apr 8, 2020

by Rys

8.2k points

1 answer

1 vote

227k views

asked Sep 13, 2023 205k views

Mfeingold asked Sep 13, 2023

8.8k points

1 answer

3 votes

205k views

Jpkeisala · Answer 1 · 2023-01-18T06:11:05+0000

Answer: innate external defenses (surface barriers)

Explanation: innate external defenses (surface barriers) are the first line of defense and include tears, mucus membranes, and the skin.