BiggestBoyBrain BiggestBoyBrain

01-03-2020
Geography

contestada

which statement describes many of the structures involved in the first line of defense of the immune system
sorry not geography lol

Respuesta :

masterdestroyer27 masterdestroyer27

01-03-2020

Answer: physical and chemical barriers

Explanation:

physical and chemical barriers try to prevent pathogens from getting inside the body

Answer Link

Ashleydarkwolfa Ashleydarkwolfa

25-09-2020

Answer: They have contact with the external environment.

(I took a test over this and got this question right)

Answer Link

Otras preguntas

Georgia Governor Eugene Talmadge was against the New Deal programs in the 1930s. He believed that by hard work and thrift alone a person could master his or her

In their colonies, the French practiced indirect rule, relying on native princes and local troops. True or False?

A current of 3.60A flows for 15.3s through a conductor. Calculate the number of electrons that pass through a point in the conductor in this time

What are internal and external regulators? lipids carbohydrates proteins.

Do you agree with the quote "the world would be a dull place without music"? can u please explain to me in at least 5 sentences why?

What is 20% of 70 plants & 32% of 25 pages, 85% of 40 emails, 72% of 350 friends also 5% of 220 files

solve each equation by finding all roots X^4-81=0

what layers contain the densest materials

how did Czar Alexander II's emancipation edict affect the lives of Russian serfs?

x-5y=18, 2x-3y=-13? what is x and y, using the substitution method