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How do vaccines prevent certain diseases?

Vaccines introduce a dead, inactive or altered form of a pathogen (a microbe that causes an infectious disease) into the body. These pathogens have antigens,

AM
Answered by Alice M. Biology tutor
2505 Views

What is a vector?

A vector describes a movement from one point to another.a column vector shows both the direction and the magnitude of this movement.the top number describes the horizontal movement.the bottom number descr...

TH
Answered by Tom H. Maths tutor
4924 Views

1) What is the area of a rectangle? 2) What is the area of a triangle?

  1. The area is found by doing length x width. (this can be taught by using squared paper and counting the squares in a shape.2) the area of a triangle is found by using the equation 1/2 x base x height...
TH
Answered by Tom H. Maths tutor
2024 Views

Given M = [[-2,6],[1,3]], find P and D such that M = PDP^(-1) where D is a diagonal matrix

We are given M = [[-2,6],[1,3]], with columns [-2,6] and [1,3]. To find P and D, eigenvalues and eigenvectors must be calculated, as D is defined to be the matrix whose diagonal is comprised of the eigenv...

HR
2915 Views

How does JB Priestly explore Responsibility in An Inspector Calls?

Consider: the ideas about responsibility in An Inspector Callshow Priestley presents these ideas by the ways he writes.
Priestley explores ideas about responsibility through the way the Birl...

EC
33520 Views

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