26. Agar, commonly used as a synthetic growth medium and in bakery, is obtained from
algae
mosses
cycas
pine
27. The foetal body temperature in mammals is regulated by
allantoi
amnion
chorion
yolk sac
28. During the course of development, the umbilical cord is derived from
allantois
placenta
endometrium
29. Silicosis is a
Kidney disease
Liver disease
Lung disease
Neurological disorder
30. Llama differs from a camel in 1. the absence of a hump 2. the presence of two humps 3. having woolly hair 4. restricted to high altitudes in North America
1, 3
2, 3
1, 3, 4
2, 3, 4