Which is the main organic molecule that is digested by the secretions of the stomach?
A) carbohydrate B) protein C) lipid D) nucleic acid
Answer: B
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Which of the following accurately describes the pH scale?
A. The pH scale runs from 0 (most acidic) to 14 (most basic), with 7 as a neutral. B. The pH scale runs from 0 (most acidic) to 14 (neutral), with 7 as an average acidity level. C. The pH scale runs from 0 (most basic) to 14 (most acidic), with 7 as a neutral. D. The pH scale runs from 0 (neutral) to 14 (most acidic), with 7 as an average acidity level.
Cancer cells
a. have an abnormal chromosome number. b. are unable to attach to other cells. c. divide to produce high densities of cells. d. have malformed cytoskeletons. e. fit all of these descriptions
The genotypes and numbers of progeny resulting from a testcross are as follows: t+g+ l+ 72 tgl 69 t+gl 21 tg+l+ 18 t+gl+ 9 tg+l 8 t+g+l 2 tgl+ 1 Total 200 Calculate the genetic distance between genes g and l
What will be an ideal response?
Which of the following is not a growth factor for various microbes?
a. cholesterol b. water c. vitamins d. heme