Biology
A person with 'AB' blood group is sometimes called a universal recipient because of the

Lack of both antigen and antibodies in his blood
Lack of antibodies in his blood
Presence of antibodies in his blood
Lack of antigen in his b lood

ANSWER DOWNLOAD EXAMIANS APP

Biology
The kidneys are stimulated to produce renin

When the peritubular capillaries are dilated
When the specific gravity of urine rises above 1.10
By a decrease in the blood pressure
When the pH of the urine decreases

ANSWER DOWNLOAD EXAMIANS APP