Which of the following branch deals with the various principles that govern the relationship between organisms and their environment?

• Histology
• Ecology
• Entomology
• Anthropology
Correct Option: B  [ Ecology ]

Remark:

The optimum dissolved oxygen level (in mg/litre) required for survival of aquatic organism is:

• 4-6
• 2-4
• 8-10
• 12-16
Correct Option: A  [ 4-6 ]

Remark:

Iron deficiency in Blood is referred as

• Goitre
• Anaemia
• Osteoporosis
• Kwashiorko
Correct Option: B  [ Anaemia ]

Remark:

What is the temperature when density of water is the highest

• 5 degree Celsius
• 6 degree Celsius
• 4 degree Celsius
• 3 degree Celsius
Correct Option: C  [ 4 Degree Celsius ]

Remark:

"The theory of Evolution" was developed by:

• Newton
• Mendel
• Darwin
• Einstein
Correct Option: C  [ Darwin ]

Remark:

If a liquid is heated in space under no gravity, the transfer of heat will take place by process of:

• conduction
• convection
• radiation
• cannot be heated in the absence of gravity
Correct Option: C  [ radiation ]

Remark:

The branch of medical science that deals with diseases and problems specific to old people is:

• Cytology
• Geology
• Gerontology
• Zoology
Correct Option: C  [ Gerontology ]

Remark:

Acid rain is caused by

• Humidity
• Pollutant gases
• Population explosion
• None of these
Correct Option: B  [ Pollutant gases ]

Remark:

Which of the following elements is essential for the transmission of nerve impulses in nerve fibers of human body ?

• Calcium
• Iron
• Sodium
• Zinc
Correct Option: C  [ Sodium ]

Remark:

Number of spinal nerves in human are:

• 11 pairs
• 27 pairs
• 32 pairs
• 31 pairs
Correct Option: D  [ 31 pairs ]

Remark: