Ecosystem not found in Pakistan is_____.

1. 1. Tundra
   2. Tropical rain forest
   3. Temperate deciduous forest
   4. Grassland

Amoeba secretes digestive enzymes to hydrolyse _____.

1. 1. Proteins
   2. Starch
   3. Sugar
   4. All of these and fats

Which of the following constituent is/are maximum in the filtrate that leaves proximal convoluted tubules?

1. 1. Nitrogenous waste
   2. Glucose
   3. Amino acids
   4. None of these

Annual rainfall in grassland is about_____.

1. 1. More than 2500 mm
   2. 750-1500 mm
   3. Less than 250 mm
   4. 250-750 mm

How many hearts does an Octopus have?

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

_____is a condition characterized by an abnormal inability to see in dim light or at night.

1. 1. Myopia
   2. Hyperopia
   3. Nyctalopia
   4. None of these

There are _____stomata per square cm of leaf surface in Tobacco plants?

1. 1. 1200
   2. 100000
   3. 12000
   4. 1000

Type of neurons found exclusively in CNS are_____.

1. 1. Sensory neurons
   2. Associative neurons
   3. Motor neurons
   4. All of these

Which of the following is a contagious disease?

1. 1. Tuberculosis
   2. Lungs cancer
   3. Asthma
   4. Emphysema

The size of Spirochete is_____.

1. 1. 0.1 -600 um
   2. 500 μm
   3. 100-200 nm
   4. 0.75-1.25 um