- Trending Categories
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Why is immune system essential for our health?
The immune system of our body is a kind of defense mechanism to fight against pathogenic microbes. It has cells that are specialized to kill infecting microbes and keep our bodies healthy. It produces antibodies to kill the harmful pathogen known as the antigen.
- Related Articles
- Why are cells essential for our life?
- If \( P A \) and \( P B \) are tangents from an outside point \( P \). such that \( P A=10 \mathrm{~cm} \) and \( \angle A P B=60^{\circ} \). Find the length of chord \( A B \).
- From a point \( P \), two tangents \( P A \) and \( P B \) are drawn to a circle with centre \( O \). If \( O P= \) diameter of the circle, show that \( \Delta A P B \) is equilateral.
- Give expressions for the following cases. (a) 7 added to \( p \)(b) 7 subtracted from \( p \)
- From an external point \( P \), tangents \( P A=P B \) are drawn to a circle with centre \( O \). If \( \angle P A B=50^{\circ} \), then find \( \angle A O B \).
- Two tangent segments \( P A \) and \( P B \) are drawn to a circle with centre \( O \) such that \( \angle A P B=120^{\circ} . \) Prove that \( O P=2 A P \).
- Find the value of:(a) \( 4.9 \p 0.07 \)(b) \( 26.4 \p 2.4 \)
- Why is water essential for life?
- State any two conditions essential for good health.
- Why is Live Chat for Business Essential?
- Why is the atmosphere essential for life?
- Draw a line segment \( A B=5.5 \mathrm{cm} \). Find a point \( P \) on it such that \( \overline{A P}=\frac{2}{3} \overline{P B} \).
- If $a = xy^{p-1}, b = xy^{q-1}$ and $c = xy^{r-1}$, prove that $a^{q-r} b^{r-p} c^{p-q} = 1$.
- A point $A( 0,\ 2)$ is equidistant from the points $B( 3,\ p)$ and $C( p,\ 5)$, then find the value of P.
- Give expressions for the following cases.(a) 7 added to \( p \)(b) 7 subtracted from \( p \)(c) p multiplied by 7(d) \( p \) divided by 7(e) 7 subtracted from \( -m \)(f) \( -p \) multiplied by 5(g) \( -p \) divided by 5(h) \( p \) multiplied by \( -5 \)
Advertisements