Answer:
Coombs reagent is an antiserum with antibodies that bind to the human <u>antibodies attached on the surface of the erythrocytes.</u>
Explanation:
Coombs test is a blood test used in immunology and immunohematology. It is of two types: direct and indirect.
The Coombs reagent is an antiserum, containing antibodies.
The direct Coombs test detects the antibodies present on the surface of the erythrocytes.
In this test, when the Coombs reagent is reacted with the blood to be tested, <u>the antibodies in the Coombs reagent binds to the antibodies attached on the surface of the erythrocytes in the test blood and cause agglutination.</u>
Answer:
a stem or a leaf
Explanation:
Cuttings can be made from any part of the plant. Most frequently, however, either a stem or leaf is used. A stem cutting includes a piece of stem plus any attached leaves or buds. Thus, the stem cutting only needs to form new roots to be a complete, independent plant.
I found the answer choices for this question which are:
A. porphyritic texture.
B. coarse-grained texture.
C. glassy texture.
D. fine-grained texture
The answer to your question is C. glassy texture
Hope this helped! :)
Answer:
Circular and Radial muscles.
Explanation:
The pupilarry response is the variation of pupil's size due to a variety of causes (exposure to light, sexual stimulation, drugs) and it consists of two movements, constriction and dilation.
<em>The constrict response occurs thanks to the circular muscle and the dilations is triggered by the radial muscle, both of them are smooth muscle.</em>
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Answer:
Physical changes can easily be reversed but chemical changes cannot because in physical change only state is changed while in chemical change, new substances are formed. For example, when water in liquid form is condensed, it changes into solid form (ice). It is a physical change because water in liquid and solid have the same chemical formula only arrangement of molecules are different. Burning of wood is a chemical change because new substances i. e. carbondioxide and heat is produced.
