_______ is the most common type of biomass fuel, especially in developing countries.

A. Wood
B. Dung/manure
C. Ethanol
D. Natural gas
E. Biodiesel from soy


Ans: A. Wood

Biology & Microbiology

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Cells with cilia or flagella rely mainly on ___________________ to facilitate their movement

A. microtubules B. microfilaments C. intermediate filaments

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Which sex chromosome aneuploidy is not usually seen in live births?

A) XO B) XXY C) YO D) XXX

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The fragments of chromosomes split by restriction enzymes

a. have fused ends. b. have specific sequences of nucleotides. c. have sticky ends. d. form a circle. e. have specific sequences of nucleotides and sticky ends.

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The cyclic bouts of fever and chills in malaria are caused by ________.

A. white blood cell lysis B. neurological involvement C. the timing of the viral life cycle D. red blood cell lysis

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