Minerals move through the tissues of the plant root from the epidermis to the xylem in the center primarily by
a. passive transport with no expenditure of ATP.
b. active transport with expenditure of ATP.
c. active transport with no expenditure of ATP.
d. facilitated diffusion with expenditure of ATP.
e. facilitated diffusion without expenditure of ATP.
B
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Provide evidence that supports the hypothesis that riboswitches are remnants of the RNA world when catalytic RNAs were the only self-replicating life forms
What will be an ideal response?
The first law of thermodynamics states that ________________________
A. combustion engines are 100% efficient B. energy cannot be created or destroyed C. only eukaryotic cells can produce ATP D. there is an increase in disorder in the universe over time E. the universe becomes more orderly over time
A basic truth of inheritance that had been known well before Darwin's time was that ____
a. offspring frequently resemble their parents b. offspring inherit genes from their parents c. selective breeding improves domesticated plants and animals d. offspring frequently resemble their parents and selective breeding improves domesticated plants and animals e. offspring frequently resemble their parents, offspring inherit genes from their parents, and selective breeding improves domesticated plants and animals
As global temperatures continue to rise, what is a likely outcome?
A) loss of populations of polar fish species B) greater overharvesting of medicinal plant species C) less greenhouse gas emissions D) formation of new glaciers