Diatoms are found in_____.

1. 1. Freshwater lakes and ponds
   2. Phytoplanktonic population
   3. Marine environment
   4. All of the above

It is one of the convulsive disorders of nerves which are characterized by abrupt transient symptoms of motor, sensory, psychic or autonomic nature_____.

1. 1. Parkinson’s disease
   2. Alzheimer’s disease
   3. Dementia
   4. Epilepsy

The gal bladder releases _____enzyme to digest the food ?

1. 1. Pepsin
   2. Hcl
   3. Both
   4. None of these

The study of fossils is called_____.

1. 1. Paleontology
   2. Environmental Biology
   3. Historical biology
   4. Social biology

During rest the breathing occurs rhythmically at the frequency of _____times per minute in human?

1. 1. 16-30
   2. 5-10
   3. 6-12
   4. 15-20

What is hibernation and aestivation_____.

1. 1. Wind adaptation shown by animals
   2. Thermal adaptation shown by animals
   3. Adaptation of animals to escape from predators
   4. All of the above

The one which can break open a plasmid ring is_____.

1. 1. Primase enzyme
   2. Ligase enzyme
   3. Restriction endonuclease
   4. ATP-ase enzyme

The first eukarotes appeared about _____years ago?

1. 1. 2.5 billion
   2. 1.5 billion
   3. 3.5 billion
   4. 4.5 billion

Density gradient  centrifugation separates the materials on the basis of_____.

1. 1. Density alone
   2. Size alone
   3. Both a & b
   4. Velocity of movement

According to Lamarch evolution occurred as the result of_____.

1. 1. Natural selection
   2. The theory of recapitulation
   3. Over production
   4. Inheritance of acquired characters