Which of the following organ is responsible for body metabolism?

1. 1. Liver
   2. Lungs
   3. Heart
   4. Kidney

PH of fresh Saliva?

1. 1. 5
   2. 7
   3. 8
   4. 10

Zygote with three copies chromosome 21, is known to cause _____.

1. 1. Scurvy
   2. Downs syndrome
   3. Parkinson Disease
   4. Hay fever

Scolidon or dog fish belong to the group of fishes called_____.

1. 1. Running fishes
   2. Cartilaginous fishes
   3. Bony fishes
   4. Jawless fishes

Those bacteria which are fully dependent upon their host for nutrition are called_____.

1. 1. Saprophytic bacteria
   2. Chemosynthetic bacteria
   3. Heterotrophic bacteria
   4. Parasitic bacteria

Who discovered Fats?

1. 1. Michel-Eugène Chevreul
   2. Leeuwenhoek
   3. W. Scheele
   4. All of these

In plants there are_____asic types of tissues?

1. 1. 4
   2. 6
   3. 3
   4. 5

Exoskeleton of a marine snail is composed of_____.

1. 1. CaPO4
   2. SiO2
   3. CaCO3
   4. CaSO4

The sum of genes in a population is called _____.

1. 1. Lethal gene
   2. Genotype
   3. Karyotype
   4. Gene pool

Purple non-sulphur bacteria is an example of_____.

1. 1. Saprotrophic bacteria
   2. Photosynthetic bacteria
   3. Heterotrophic bacteria
   4. Chemosynthetic bacteria