Options:
- A. Nyctalopia
- B. Myopia
- C. Hyperopia
- D. All of the above
View Answer
A. Nyctalopia
Biology
_________ stimulates the production of gastric juice in the stomach:
Options:
- A. Gastrin
- B. Enterokinase
- C. Rennin
- D. None of these
View Answer
A. Gastrin
2. Which one of the following organisms can serve as a biofertilizer for rice crop?
Options:
- A. Blue-green algae
- B. Rhizobium sp.
- C. Mycorrhizal fungi
- D. None of these
View Answer
A. Blue-green algae
cataracts is a disease which is due to__________?
Options:
- A. Opacity of Cornea
- B. Opacity of lens
- C. None
- D. None of these
View Answer
A. Opacity of Cornea
The mechanism of regulation, generally between organism and its environment, of solutes and the gain and the loss of water is called________?
Options:
- A. Homeostasis
- B. Hemostasis
- C. Osmoregualtion
- D. Thermoregulation
View Answer
C. Osmoregualtion
Hydra has no specialized excretory system because:
Options:
- A. It does not produce waste material
- B. Due to absence of mesoderm
- C. The whole body cells are in contact with water
- D. It has pseudocoelom.
View Answer
C. The whole body cells are in contact with water
Terrestrial animals like kangaroo rat survive even without drinking water since__________?
Options:
- A. They don
- B. They can retain excessive water in their body during raining season.
- C. They feed on carbohydrate rich seeds which can provide them with metabolic water
- D. They are anhydrobiotic organisms
View Answer
D. They are anhydrobiotic organisms
Which of the following animal excrete nitrogenous waste mainly as uric acid?
Options:
- A. Hydra
- B. Planaria.
- C. Humans
- D. Birds.
View Answer
D. Birds.
In man which organisms cause abscesses on the skin of arms or legs?
Options:
- A. Ascaris
- B. Bacteria
- C. Ring worm
- D. Suinea worm
View Answer
D. Suinea worm
Diatom frustule/ shell is made of_____________?
Options:
- A. Silica
- B. Calcium carbonate
- C. Manesium carbonate
- D. Both B. and C.
View Answer
A. Silica