The diffusion of ions along with water also takes place by mass flow system along the _____path?

1. 1. Tonoplast
   2. Symplast
   3. Vacuolar
   4. Apoplast

The term ‘gene’ was first used by _____.

1. 1. Johannsen
   2. Mendel
   3. Lemark
   4. Cuvier

Parabronchi are open at_____end/s?

1. 1. Single
   2. Both
   3. Do not have opening
   4. All of these

The vascular plants are termed as_____.

1. 1. Bryophytes
   2. Tracheophytes
   3. Pteridophytes
   4. None of these

“lub” sound is produced after _____.

1. 1. The bicuspid and tricuspid valves suddenly close
   2. The ventricles are fully contracted
   3. The ventricles start to relax
   4. The semilunar valves are closed

Which of the following has no central nervous system?

1. 1. Hydra
   2. Man
   3. Planaria
   4. Cockroach

Which of the following tracheophytes are also called arthrophytes_____.

1. 1. Psilopsids
   2. Lycopsids
   3. Prteropsids
   4. Sphenopsids

Membranes of the grane are sites where?

1. 1. Sunlight is trapped
   2. Oxygen is stored
   3. Food is stored
   4. CO2 is store

Which of the following fish drink large amount of sea water and excrete concentrated urine resulting in maximum salt excretion and minimal water loss?

1. 1. Hagfish
   2. Bony fishes
   3. Fresh water fishes
   4. All of these

In most birds air sacs are_____in number?

1. 1. 9
   2. 10
   3. 12
   4. 13