Energy derives from the sun and is channeled throughout the biosphere through the mechanisms of ______
Fill in the blank(s) with correct word
Answer: Food Webs
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Sulfonamides and other drugs that inhibit folic acid synthesis have a high therapeutic index because
A. humans synthesize folic acid by a process that is not sensitive to sulfonamides. B. humans do not use folic acid. C. humans do not synthesize folic acid but obtain it in their diets. D. None of these are correct.
In a pedigree, a person whose symbol is filled in and who is associated with the Roman numeral II is ____
a. affected by the trait and in the second generation b. not affected by the trait and in the second generation c. affected by the trait and is the second-oldest child in the family d. not affected by the trait and is the second-oldest child in the family e. affected by the trait and has an identical twin
Why would a cancer cell need to induce angiogenesis?
A. It would activate oncogenes. B. It would inactivate tumor suppressors. C. Cells could then produce proteins that avoid checkpoints in the cell cycle. D. It is another name for stage I in metastasis. E. Cancer cells depend on a large blood supply.
People with albinism carry two copies of the dominant allele (AA) and cannot make a pigment called melanin
a. True b. False