Top answers

What is the difference between humoral and cell mediated immunity?

Humoral: An invading pathogen in the blood or lymph has foreign antigens on its surface. This activates B cells which then produce antibodies against the antigen.Cell mediated: One of the body’s own cells be...
CA
Answered by Charlotte A. • Biology tutor
3791 Views

“I soldi non fanno la felicità”. Sei d’accordo? – Discursive Essay

Being written in a foreign language it can be more difficult for you to fully understand and answer the question. Hence, it is very important to get all the keywords in order to proceed with writing your ans...
JJ
Answered by Jiaxin J. • Italian tutor
2412 Views

differentiate y=(3x)/(x^2+6)

using the quotent ruledy/dx= (3(x^2+6)-3x(2x))/(x^2+6)^2dy/dx=3(x^2+6-2x^2)/(x^2+6)^2dy/dx=(18-3x^2)/(x^2+6)^2
MS
Answered by Michael S. • Maths tutor
4533 Views

Two forces of 4N and 10N act on a body. Which of the following could not be the resultant magnitude? (14N, 7N, 6N, 3N)

My first thought when dealing with resultant forces is to try out the most common combinations: combined and opposite. In this case 10N + 4N = 14N and 10N - 4N = 6N. This tactic does rule out two of the answ...
AJ
Answered by Aleksandr J. • Physics tutor
9639 Views

What is the point of having a control group in a Psychological experiment?

A control group allows us to have a base recording that we can compare our experimental group to. A control group and an experimental group are treated in the same way except for the variable that we are man...
CC
8369 Views