A. Hemoglobin
B. Enzymes
C. Salts
D. Other proteins
Biology
An antibody is made of ……… polypeptide chains?
A. 1
B. 2
C. 3
D. 4
………….. of earth surface is covered with water?
A. 10%
B. 30%
C. 75%
D. 90%
Gaseous exchange in birds occurs at level of……………?
A. Alveoli
B. Air sacs
C. Bronchi
D. Parabronchi
Animals of which class of arthropoda are present everywhere………….?
A. Crustacean
B. Insecta
C. Arachnida
D. Myriapoda
Red to orange pigments are………….?
A. Carotenes
B. Carotenoids
C. Xanthophylls
D. Chlorophyll
Enterobius vermicularis is commonly known as…………?
A. Flatworm
B. Pinworm
C. Hook worm
D. Tapeworm
Amphibians are considered to be evolved from………..?
A. Newts
B. Varanope
C. Dipnoi
D. Hagfishes
How many spiracles are present in cockroach………….?
A. 5
B. 10
C. 20
D. 40
Salivary glands present in front of ear are………..?
A. Sublingual
B. Submaxillary
C. Submandibular
D. Parotid