How many vertebrae are in sacrum?

1. 1. 3
   2. 5
   3. 7
   4. 9

Who coined the term Animalcules for microorganisms like Bacteria and protozoa_____.

1. 1. Alexander Fleming
   2. Leeuwenhoek
   3. Robert Koch
   4. Louis Pasteur

Diatom frustule shell is made of_____.

1. 1. Silica
   2. Calcium carbonate
   3. Manesium carbonate
   4. Sulfur Dioxide

Amphibians are considered to be evolved from_____.

1. 1. Dipnoi
   2. Varanope
   3. Hagfishes
   4. Newts

The active site of an enzyme_____.

1. 1. Determined by structure and the specificity of the enzyme
   2. Forms no chemical bond with substrate
   3. They are non specific in their action
   4. Never changes

Which of the following excretory structure is associated with gut of the organism?

1. 1. Malpighian tubules
   2. Nephrons
   3. Protonephridium
   4. Metanephridium

Ribosomes + m-RNA?

1. 1. Polosome
   2. Phlosome
   3. Polysome
   4. None of these

In which group of tracheophytes ovules are born on the exposed surface of megasporophylls_____.

1. 1. Gymnosperms
   2. Filicineae
   3. Angiosperms
   4. Spheospsida

In Urea cycle _____ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

1. 1. 2
   2. 3
   3. 4
   4. 5

Flagella is composed of_____.

1. 1. Intermediate filaments
   2. Micro tubules
   3. Glycoproteins
   4. Micro filaments