Define agglutination.

Match the following and choose the correct combination related to blood groups of Man.

Find odd one out. Blood plasma, platelets, blood transfusion, blood corpuscles.

Represent the union of two sets by Venn diagram for each of the following.

$X=\{x | x$ is a prime number between $80$ and $100\}$

$Y=\{y | y$ is an odd number between $90$ and $100\}$