Answer:
Type B+ can only receive blood from a donor that has blood type B and AB with Rhesus positive or negative.
Explanation:
The blood group system classification is based on the presence or the absence of antigens on the surface of the red blood cells. thus the blood group system is divided into four main blood group types/antigens present. During blood transfusion, the donated blood must be compatible with the patient blood type.
In blood transfusion, patient who is Rh positive can receive blood from donor who is Rh negative, but those with negative blood types cannot receive from anyone with a positive blood type but only the Rh- blood.
Donors with blood type A can donate blood to recipients with blood types A and AB
Donors with blood type B can give blood to recipients with blood types B and AB
Donors with blood type AB can donate to recipients with blood type AB only
Donors with blood type O can give blood to recipients with all blood types A, B, AB and O.
According to the research, the correct option is contour farming. It is the agricultural technique which involves turning the soil over and parallel to the hill in order to prevent soil erosion.
<h3>What is contour farming?</h3>
This is a soil conservation practice and to reduce erosion, it consists of arranging crop rows across the slope, following the contour lines.
Specifically, this practice helps to reduce water runoff and soil drag, since when planting the rows of crops against the slope, the other tasks of the crop, such as cleaning and hilling, are done in the same way and each furrow or row of the crop oppose the passage of rainwater that fails to filter into the soil, slowing down its speed, and thus there is less soil and nutrient runoff.
Therefore, we can conclude that according to the research, the correct option is contour farming. It is the agricultural technique which involves turning the soil over and parallel to the hill in order to prevent soil erosion.
Learn more about contour farming here: brainly.com/question/11877099
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I believe that would be small polar and nonpolar molecules.
Hope it helps!
"<span>The shape of an enzyme determines which reaction it can catalyze" would be the best option from the list, since most enzymes can only do their job if they "fit" into the structure that they wish to enhance, or "speed up". </span>
Answer:
(i) dissolved
(ii)increase stirring rate & increase the temperature of the water
(iii)evaporation
