9:1
What is coagulation test?
When you cut yourself, clotting stops the blood from becoming excessive. Your blood should not clot as it flows through your veins, though. These clots have the potential to develop and move through your bloodstream to your heart, lungs, or brain. A heart attack, stroke, or even death could result from this.
Coagulation assays assess the speed and consistency of blood clotting. Your doctor can use testing to determine your risk of excessive bleeding or the occurrence of clots (thrombosis) in one of your blood arteries.
Venous blood samples for coagulation assays should be drawn into a blue top tube containing 3.2% buffered sodium citrate to produce whole blood samples with a 9:1 blood to anticoagulant ratio.
To know more about coagulation test click on the following link brainly.com/question/28199514
#SPJ4
Answer:
Plants and algae make their own food and are called producers. Level 2: Herbivores eat plants and are called primary consumers. Level 3: Carnivores that eat herbivores are called secondary consumers. Level 4: Carnivores that eat other carnivores are called tertiary consumers.
Explanation:
.....
A) is correct
because the experiment is based on radiations, not the type of radiations so it can't be b.
it can't be c because again, it's talking about the radiation
it can't be d because the water isn't an effect of radiations
(sorry for my english)
If crossing over did not happen during meiosis in humans then there would be lass genetic variation in humans so the correct answer is A