In Urea cycle _____ammonia molecules combine with 1 CO2 molecule to form 1 molecule of urea.

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

Which of the following filtrate contains excessive amount of amino acids, glucose, and salts?

1. 1. Filtrate passing through distal conveluted tubule
   2. Filtrate passing through collecting tubules
   3. Glomerular filtrate
   4. Filtrate passing through ascending limb

Which of the following excretory structure is associated with gut of the organism?

1. 1. Malpighian tubules
   2. Nephrons
   3. Protonephridium
   4. Metanephridium

The opening and closing of stomata are directly controlled by the_____.

1. 1. pH
   2. Light
   3. Temperature
   4. All of these

Diatom frustule shell is made of_____.

1. 1. Silica
   2. Calcium carbonate
   3. Manesium carbonate
   4. Sulfur Dioxide

Flagella is composed of_____.

1. 1. Intermediate filaments
   2. Micro tubules
   3. Glycoproteins
   4. Micro filaments

Which one of the following animal has two separate circulatory pathways?

1. 1. Frog
   2. Shark
   3. Lizard
   4. Whale

Organisms of which of the following kingdom have absorptive mode of nutrition_____.

1. 1. Protoctista
   2. Animalia
   3. Prokaryotae
   4. Fungi

How many vertebrae are in sacrum?

1. 1. 3
   2. 5
   3. 7
   4. 9

In which of the following pigments major energy reserves and cell wall are like plants?

1. 1. Chrysophyta
   2. Rhodophyta
   3. Chlorophyta
   4. Phaeophyta