Rigor mortis i.e, stiffening of body after death results from_____.

1. 1. Unavailability of ATP, which is necessary to break the link between actin and myosin
   2. Accunulation of rigid proteins molecules in sarcoplam
   3. Death of tissue due to unavailability of O2
   4. Decrease in body temperature after death

The increase in the heart rate is termed as _____.

1. 1. Tachy bradycardia
   2. Bradycardia
   3. Tachycardia
   4. None of these

Blood does not clot in the blood vessels due to the presence of _____.

1. 1. Prothrombin
   2. Fibrinogen
   3. Thrombin
   4. Heparin

Which one of the following is a micromolecule?

1. 1. ATP
   2. Polysaccharide
   3. Hemoglobin
   4. Protein

The expected number of RBCs in a single drop, or microliter, of blood is _____million in Women.

1. 1. 3.4 to 6.8 million
   2. 3.2 to 7.2 million
   3. 4.0 to 7.2 million
   4. 4.5 to 6.2 million

Kranz anatomy is a characteristic feature of_____.

1. 1. C3 plants
   2. C2 plants
   3. CAM plants
   4. C4 plants

Which of the following is the less important organ in human body?

1. 1. Navel
   2. Hair
   3. Hip bone
   4. Appendix

Which of the following is an example of “molecule”?

1. 1. DNA
   2. A Nerve Cell
   3. Chloroplast
   4. Hydrogen

How many milky teeth or primary teeth does a human have?

1. 1. 15
   2. 20
   3. 26
   4. 32

Which of the following statement is incorrect about Molluscans?

1. 1. They have hydrostatic skeleton
   2. They move by tube feet
   3. Their shell grows as the animal grows
   4. They are surrounded by single or double pieces of hard skeleton