The experiments on DNA molecules in chromosomes for knowing the basis of inherited diseases are conducted by ?

A. Molecular biologists
B. Microbiologists
C. Freshwater biologists
D. Social biologist

About __________ of the body weight of a mammal is water ?

A. 60%
B. 65%
C. 70%
D. 75%

The study of fossils is called?

A. Environmental biology
B. Historical biology
C. Palaeontology
D. Social biology

The average internal temperature of human body is __________?

A. 35 oc
B. 36 oc
C. 37 oc
D. 38 oc

Which character differentiates living things from non-living organisms?

A. They live in the same ecosystem.
B. They are highly organized and complex made of one or more cells and contain genetic material
C. They are acted upon by the same environment
D. Both a and b

People living in high altitudes (like mountains) usually have a _________?

A. Smaller number of red blood cells
B. Larger number of red blood cells
C. Smaller number of white blood cells
D. Larger number of white blood cells

The scientific study of livings is called?

A. Anatomy
B. Biology
C. Geology
D. Zoology

Crop rotation helps in______________?

A. Growth of pathogens
B. Soil infertility
C. Slowing of crops growth
D. Eradication of disease

Dolly, the sheep was a highly successful clone from a somatic cell, reported back in________?

A. 1993
B. 1994
C. 1995
D. 1996

An educated guess is called:

A. Accumulated data
B. Observation
C. Hypothesis
D. Conclusion