List four components of blood. Rank these components by their relative proportions in a blood sample from the largest proportion to the smallest proportion?

STATE WHICH OF THE FOUR MAJOR BLOOD COMPONENTS IS RESPONSIBLE FOR INITIATING THE CLOTTING PROCESS?

LIST FOUR WAYS BY WHICH DISEASE CAUSING PATHOGENS CAN ENTER THE BODY?

Four major components

Explanation:

A- There are 4 major components of the blood.

1- Red Blood cells 45% of blood portion

2- White blood cells make up to 1% of blood proportion

3- Platelets less than 1% of the blood portion

4- Plasma 55% of the blood components

B- platelets are responsible for initiating the clotting process.

C- pathogens can enter into the body through airborne particles, skin contact, through food and body fluids.

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation: