Soil formation is due to
A. decomposition of organic matter.
B. chemical weathering of rock.
C. mechanical weathering of bedrock.
D. All of the choices are correct.
Answer: D
Biology & Microbiology
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Meiosis in females is completed
A. at conception. D. at fertilization. B. at ovulation. E. prior to conception. C. at puberty.
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What are the three main components of modern cell theory?
What will be an ideal response?
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The series of metabolic events that occurs within tomato plants in response to wounding is
A. a systemic response. B. a pathogen-specific response. C. resistance to coevolution. D. the hypersensitive response. E. a waterfall effect.
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