Copy and complete these sentences.
A microorganism that can make a person ill is called a
. Some types of bacteria,
and
are pathogens. Some pathogens can get into the body
in food and drink. The stomach produces .
which helps to destroy these.
The skin has a thick layer of
that stops most pathogens getting into it. However,
if the skin is cut, pathogens may enter the blood. Blood helps to prevent this.
Many of the pathogens that are present in the air that we breathe in are prevented from reaching
the lungs, because they are trapped by sticky in the respiratory passages.

iu

step-by-step explanation:

throw the computer

step-by-step explanation:

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204

2.2°  

step-by-step explanation:

let θ = the angle of elevation.

tanθ =77/2020

tanθ = 0.038 12

      θ = tan⁻¹0.038 12

      θ = 2.2°