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1306. ""Ecological niche"" refers to the :
A. amount of autotrophs available for consumption of the grazing population
B. relationship of an animal with the surrounding animals
C. position of an animal with reference to its species
D. none of these
Explanation:
1307. Which of the following have not undergone much of a change during the process of evolution over millions of years ?1. Crocodile 2. Cockroach3. Horse
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1, 2 and 3
Explanation:
1308. The highest grade of coal whose surface is shining and has the highest calorific value, is :
A. Bituminous
B. Lignite
C. Anthracite
D. Peat
Explanation:
1309. ""It begins as a single cell and grows into a merciless disease that claims millions of livesyear after year. But scientists are steadily unlocking its mystries, and the fight angainst it may now have reached a dramatic turning point. Now discoveries promise better therapies and hope in the war against ...."". The disease referred to in the above quotation is
A. tuberculosis
B. cancer
C. alzheimers disease
D. AIDS
Explanation:
1310. Which of the following is not correctly matched ?
A. Antimony - Sb
B. Tin - Ti
C. Tungsten - W
D. Rehenium - Re
Explanation:
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