Oil-degrading bacteria are naturally present in the environment but cannot degrade an oil spill fast enough to avoid ecological damage. How can the actions of these bacteria be sped up?
a. Provide oil for them.
b. Provide sugar as a carbon source.
c. Provide nitrogen and phosphorus.
d. Add water.
e. Add NaCl.
Ans: c. Provide nitrogen and phosphorus.
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To exert its effects on gene regulation in a cell, a steroid hormone must interact with a variety of proteins and cell structures along the way. Check the box for each interaction partner.
_____ carrier protein _____ microtubules _____ plasma membrane _____ hormone receptor _____ nuclear membrane _____ GPCR Clarify Question What is the key concept addressed by the question? What type of thinking is required? Gather Content What do you already know about steroidhormones? What other information is related to the question? Choose Answer Given what you now know, what information is most likely to produce the correct answer? Reflect on Process Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Four of the following are typical features of anthropoids. Which one is the exception?
a. diurnal b. good eyesight c. color vision d. carnivorous e. dry nose
The number of glyceraldehyde-3-phosphate molecules that would be produced from 24 turns of the Calvin cycle would be
A. 8 B. 12 C. 6 D. 4 E. 48
The oxidized form of inorganic iron that results from microbial oxidative processes is ________.
A. ferrous iron B. nitrate iron C. sulfate iron D. ferric iron