Answer: Antigens
Explanation: The ABO system of blood grouping is based on the basis of the type of antigens that are present in the red blood cells. Erythrocytes is another name for the red blood cells. Antigens are molecules that are capable of eliciting immune response. There are two types of antigens: antigen A and B. Blood type A has only antigen A, blood type B has only antigen B, blood type AB has both antigen A and B while blood type O has no antigen (neither A nor B antigen).
Similarly, Rh trait is determined by the presence or absence of rhesus antigen in the erythrocytes. Rhesus antigen is an antigen first discovered in rhesus monkey. Rh+ indicates the presence of rhesus antigen in the red blood cells while Rh- indicates the absence of rhesus antigen in the red blood cells.
Answer:
Chemical, cellular. tissue, organ, organ system, and organism level.
Explanation:
Answer:
They develop in the <u><em>TESTICLES</em></u>.
Explanation:
<em><u>TESTICLES</u></em> are the two <u><em>OVAL ORGANS </em></u> that produce <u><em>SPERM</em></u> in <u><em>MEN</em></u> and other mammals, enclosed in <u><em>SCROTUM</em></u> behind the <em><u>PENIS</u></em>.
Answer:
non luminous is your answer.
<span>The student who experienced burning, itching, and redness of vagina may be diagnosed for vaginitis using clinician's assessment questions like </span>a- Have your periods been regular in the last few months?” and c-“Are you using oral contraceptives?”
V<span>aginitis occurs when there are changes in the vaginal environment that allow pathogens to grow. If the student answered NO to a. she must be pregnant. If she answered YES to c., then she is having sexual intercourse. Pregnancy, sexual intercourse and use of contraceptives along with antibiotics, stress, and hormones alter the vaginal flora thus allowing pathogens to proliferate causing vaginitis.</span>
