100 Best Biology MCQ
Q105). Radioactivity is a phenomenon of the spontaneous emission of
a).protons (alpha particles)
b).electrons (beta particles)
c).gamma rays (short wave electromagnetic waves)
d).All of the above
Correct Answer:
All of the above
Explaination:
Q106). Organic Substances which, in very small amounts, control growth and development called
a).vitamins
b).hormones
c).enzymes
d).None of the above
Correct Answer:
hormones
Explaination:
Q107). Our major foods, fibres, spices, fruits and beverage crops are
a).flowering plants
b).gymnosperms plants
c).pteridophytes
d).bryophytes
Correct Answer:
flowering plants
Explaination:
Q108). Movements due to light are shown by
a).flowering plants
b).lower plants
c).all land plants
d).all the plants
Correct Answer:
flowering plants
Explaination:
Q109). Outer covering of virus made up of protein is
a).capsid
b).coat
c).virion
d).viriod
Correct Answer:
capsid
Explaination:
Q110). Radish is a
a).bulb
b).conn
c).modified root
d).tuber
Correct Answer:
modified root
Explaination:
Q111). Most common disease of poultry in India is
a).fowl pox
b).tick fever
c).ranikhet
d).coryza
Correct Answer:
ranikhet
Explaination:
Q112). Most abundant tissues of our body are
a).muscular
b).connective
c).epithelial
d).nervous
Correct Answer:
connective
Explaination: