Which is regarded as the urinary bladder of the embryo?
Amnion
Allantois
Chorion
Yolk sac
B.
Allantois
Allantois is an extraembryonic membrane developed as an outgrowth from hindgut. In the eggs of reptiles and birds, it functions as a urinary bladder and stores the waste excretory products. It also provides oxygen (in reptiles, birds and mammals) and food (in mammals) to the embryo.
Branch of zoology dealing with the study of fishes is called
Arthrology
Ichthyology
Saurology
Herpetology
The most active phagocytic white blood cells are
Neutrophils and eosinophils
Lymphocytes and macrophages
Eosinophils and lymphocyte
Neutrophils and monocytes
Change in the number of body parts is called
Continuous variation
Discontinuous variation
Meristic variation
Substantive variation
Blood is a kind of
Areolar tissue
Connective tissue
Fluid connective tissue
Reticular connective tissue
