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2406. The amount of oxygen in the atmosphere remains relatively constant because oxygen is given off by
A. rocks
B. animals
C. plants
D. oceans
Explanation:
2407. Which of the following sequences correctly explains Darwins theory in The Origin of the Species ? 1. Variation 2. Survival of the fittest 3. Overproduction 4. Struggle for existence
A. 1, 4, 3, 2
B. 3, 1, 2, 4
C. 3, 1, 4, 2
D. 1, 3, 4, 2
Explanation:
2408. Which of the following is not associated with Mendel ?
A. Law of segregation
B. Law of dominance
C. Law of independent assortment
D. Law of inheritance of acquired characters
Explanation:
2409. Evolution of human species occurred in
A. Asia
B. Africa
C. Europe
D. None of these
Explanation:
2410. Water stored in ordinary earthen pots is cooler because
A. the material of the pots has low specific heat.
B. water passes out through the pores and evaporates.
C. the pots constantly radiate heat cooling the water.
D. air passes through its pores and cools the water.
Explanation:
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