Question

67. The nitrogenous wastes in birds are excreted as
A) CO2
B) Urea
C) Uric acid
D) Ammonia
68. During the Formation of urine in the kidney ,most of the water is reabsorbed into the blood in;
B) Descending loop of Henle.
A) Proximal convoluted tubule
D) Distal convoluted tubule
C) Ascending coop of Henle
69. Hear beat originates from
B) Cardicmusels
A) Pacemaker
D) Right ventricle
C) Left atrium
70.Largest Heart is found in
B) Giraffe
A) Elephant
D) Lion
C) Crocodile​

Answer 1

HELLO!!

67. The nitrogenous wastes in birds are excreted as

C)Uric acid

68. During the Formation of urine in the kidney,most of the water is reabsorbed into the blood in

B) Descending loop of Henle

69.. Hear beat originates from

A)Pace maker

70.Largest heart is found in

B) or A)