Which of the following tracheophytes are leafless?

1. 1. Psilopsida
   2. Lycopsida
   3. Sphenopsida
   4. Prteropsida

Active transport is dependent on_____.

1. 1. Photosynthesis
   2. Photophosphorylation
   3. Respiration
   4. None of these

Unbroken series of organisms arranged from ancestor to descendant sequence is_____.

1. 1. Biodiversity
   2. Connecting link
   3. Evolutionary line
   4. Phyletic lineage

Which disease has been totally eradicated from the world because of effective vaccination?

1. 1. Measles
   2. Small pox
   3. Polio
   4. Hepatitis

Which of the following are proteins in nature?

1. 1. Antitoxins
   2. Antibodies.
   3. Interferons
   4. All of these

Different species of plants and animals living in the same habitat is called _____.

1. 1. Community
   2. Population
   3. Biome
   4. Habitat

Y-chromosome is _____.

1. 1. Telocentric
   2. Submetacentric
   3. Acrocentric
   4. Acentric

What is the average adult Pulse rate?

1. 1. 72-80
   2. 140-150
   3. 115-125
   4. None of these

Net yield of H2O in Photosynthesis is_____.

1. 1. 0 molecule
   2. 1 molecule
   3. 6 molecules
   4. 3 molecules

The movement of water molecules from a region of higher water potential to a region of lower water potential (through membrane).

1. 1. Diffusion
   2. Active transport
   3. Osmosis
   4. None of these