21)Which of the following animals breathes through the skin?
a) Fish
b) Pigion
c) Frog
d) Cockroach
22) The science related with the study of living—
a) Physics
b) Chemistry
c) Biology
d) Mathematics
23)In pedology we study about—
a) Disease
b) Pollution
c) Soil
d) Rockes
24)Homo sapien is the scientific of—
a) Honeybee
b) Monkey
c) Man
d) Tiger
25) Genetic material of a virus is—
a) DNA
b) RNA
c) Either DNA or RNA
d) Both DNA and RNA
26)Tuberculosis is caused by—
a) Virus
b)Bacteria
c) Protozoa
d) Fungi
27) Yeast is an important source of—
a) Vitamin C
b) Protein
c) Vitamin B
d) Invertase
28) Virus which contain RNA as genetic material—
a) Reovirus
b) Reterovirus
c) Ribo virus
d) All
29) Mitochondria is absent in—
a) Fungi
b) Algae
c) Bacteria
d) Yeast
30)Which one of the following disease caused by bacteria—
a) Tuberculosis
b) Mumps
c) Small pox
d) Rabies