rorarivera2000 rorarivera2000

02-06-2016
Biology

contestada

All of the following prevent pathogens from entering the human body except
a. red blood cells
b. tears
c. mucus
d. skin

Respuesta :

HaiHayley HaiHayley

02-06-2016

A. red blood cells. They carry oxygen around the body, not protect from pathogens.

Answer Link

Otras preguntas

The decomposition of NI3 to form N2 and I2 releases −290.0 kJ of energy. The reaction can be represented as 2NI3(s)→N2(g)+3I2(g), ΔHrxn=−290.0 kJ Find the chang

Salt Company reports net income of $360 million for 2017; the company's tax rate is 40%. At the beginning of the year, 200 million common shares were outstandin

What’s 599,600 in scientific notation

Give at least one example of vertical gene transfer or transmission?

Solve for x: x + 10 = 5 Solve for x: x - 3 = 6 plz help me and show work

Which account would you put money in if you wanted to earn a guaranteed interest rate over a period of 6 months? A.CD B.checking account C.savings account D.mon

Find the linear approximation of the function f(x, y, z) = x2 + y2 + z2 at (4, 4, 7) and use it to approximate the number 4.022 + 3.992 + 6.972 . (Round your an

A man walks along a straight path at a speed of 4 ft/s. A searchlight is located on the ground 6 ft from the path and is kept focused on the man. At what rate i

Factor completely x2 + 25

Each aminoacyl trna synthetase is specific for one amino acid and a small number of trnas. True or False