Question

what is the bodys first line of defense against communicable diseases?

immune system

cardiovascular system

skin

antibodies

question 7
1 pts
is a network of cells tissue organs and chemicals that fights off pathogens.

immune system

respiratory system

meningitis

nervous system

Explanation:

Identify the first line of defense against communicable diseases

The body's first line of defense consists of physical and chemical barriers that prevent pathogens from entering the body. The skin acts as a continuous, physical barrier blocking foreign invaders.

Define the network that fights off pathogens

A network of cells, tissues, organs, and chemicals specifically designed to fight off pathogens and protect the body from infection is the definition of the immune system.

Answer:

Question 1

• (A) immune system
• (B) cardiovascular system
• (C) skin (Correct answer)
• (D) antibodies

Question 2

• (A) Immune system (Correct answer)
• (B) Respiratory System
• (C) Meningitis
• (D) Nervous system