Two objects that are similarly charged will repel, while two objects with opposite charges will attract. Moreover, a neutral object will attract either charges.
Answer:
Explanat Clade 4 was derived from clade 2.ion:
I had this question when I took a biology class cuz I chose to study a lot on paleontology :)
It’s that there’s fossils of animals in geological strata that are older than the Cambrian explosion.
Some fossils from the ediacaran period have been discovered in layers aged to the Cambrian
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>
