The dorsal surface of a rabbit corresponds to the
__________ of a human.
a. anterior
b. posterior
c. inferior
d. superior
e. ventral
Answer: b
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Why is meiosis necessary for sexual reproduction?
What will be an ideal response?
The Calvin cycle
A. is a linear reactive pathway that produces ATP and NADPH to drive other cell processes. B. is a linear pathway that passes high-energy electrons to glucose molecules. C. is a cyclic reactive pathway that produces ATP and NADPH to drive other cell processes. D. is a linear reactive pathway that produces three-carbon molecules from CO2. E. is a cyclic reactive pathway that produces three-carbon molecules from CO2.
Transcription factors that increase the rate of transcription by binding a target in the general transcriptional machi and an enhancer are known specifically as:
a. activator proteins. b. leucine zipper proteins. c. helix-turn-helix proteins. d. zinc finger proteins. e. lnc RNAs
A farmer decides she wants to grow certified organic corn and sets out to meet all USDA standards to do so
Her crop grows well for the first 3 years; however, she notices during the 4th and 5th years that plants are getting smaller and producing much less corn. She has not altered farming practices and begins to wonder what is happening. She remembers someone mentioning planting peanuts every 3rd year in place of a corn crop, which leads to much healthier corn. Why would a farmer want to change to a different crop, especially something like peanuts? A) Planting a legume like peanuts increases water retention in the soil, allowing the following year's corn crop to thrive. B) Crop rotation with a legume like peanuts will increase nitrogen in the soil, reducing the need for chemical fertilizer. C) Planting a legume like peanuts increases the available carbon in the soil. D) Changing from corn to peanuts, a legume, allows the soil to "rest" for a year.