Insects that transmit diseases are known as
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Which of the following is secreted by the liver?
___________ is a typically onecelled, reproductive unit capable of giving rise to a new individual without sexual fusion.
Which of the following induces nitrogen fixation in soil?
Unemployment resulting from industrial reorganization, typically due to technological change, rather than fluctuations in supply or demand is called
Which among the following is not a direct tax?
Chemical composition of cement is
The thymus gland produces a hormone called