341. The anti-malarial drug Quinine is made from a plant. The plant is:
A. Neem
B. Eucalyptus
C. Cinnamon
(D. Chichona)
342. Which one is the rootless plant?
A. Pistia
B. Monochoria
(C. Eichhornia)
D. Ceratophyllum
343. The element which is required by the plant in large quantity?
A. Calcium
B. Sulphur
C. Phosphorus
(D. Nitrogen)
344. Sandalwood tree is considered a:
(A. Partial root parasite)
B. Stem Parasite
C. Total stem parasite
D. Total root parasite
345. Development of fruit without fertilization is:
A. Parthenogenesis
B. Apomixes
(C. Parthenocarpy)
D. Fertilization
346. The one which can tolerate the highest external osmotic pressure:
A. Algae
B. Amoeba
(C. Fungi)
D. Bacteria
347. The greatest diversity of animals in the lake is found in which one of the following zones?
A. Limnetic zone
(B. Littoral zone)
C. Profundal zone
D. None of these
348. What is the characteristic feature of consumers?
A. Autotroph
(B. Heterotroph)
C. Parasite
D. Saprophyte
349. In which animal respiratory surfaces are found in more than one organ?
A. Birds
B. Human
C. Fish
(D. Frog)
350. Communities are __ collections of organisms?
A. Static
(B. Dynamic)
C. May be static or dynamic
D. None of these