Which of the following is an excretory organ of cockroach?
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Which of the following carries blood away from the heart to different body parts?
Parallel venation is found in _____.
Which of the following disease is not caused by water pollution?
Which of the following is a metabolic function of skin?
The Equator does NOT pass through which of the following countries?
ABM stands for ______.
The _________ keeps the average temperature of the Earth fairly steady.