I believe the answer is  descriptive science
Descriptive research aim to produce a data that describe a condition. It doesn't trying to analyze the data and find correlation or causation. In this case, the scientist trying to make catalog of new species. The result should be a list that could describe the species of the species. There is no hypothesis or variable in this research.
 
        
             
        
        
        
I believe it’s called perculation
        
             
        
        
        
During bleeding, both formed elements (platelets, white blood cells, red blood cells) and plasma are lost from the circulatory system. They are lost proportionally, so initially there is no change in hematocrit. 
Hematocrit is the percentage of the blood volume made up of elements (Hct = cell volume/blood volume). During dehydration, only water and electrolytes are lost, and the number of cells remains constant - the same number of cells in a smaller volume leads to an increase in hematocrit. When the body tries to restore blood volume, the first thing to recirculate is water from the ECF and this increases the amount of water without increasing the amount of red blood cells, so the compensatory mechanism causes the hematocrit to fall. 
Learn more about  Hematocrit on:
brainly.com/question/13739588
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