The macromolecule composed of amino acids is a

A. lipid.
B. carbohydrate.
C. nucleic acid.
D. protein.
E. steroid.


D. protein.

Biology & Microbiology

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Which plants store CO2 in the form of malic acid and close their stomata during the day?

A) C3 plants B) C4 plants C) CAM plants D) hornworts and liverworts

Biology & Microbiology

Use the following table to answer the following question(s).Table 1: Cookie parameters with varying fat levelsData from Pareyt, Bram, Faisal Talhaoui, Greet Kerckhofs, Kristof Brijs, Hans Goesaert, Martine Wevers, and Jan A. Delcour, "The Role of Sugar and Fat in Sugar-Snap Cookies: Structural and Textural Properties." Journal of Food Engineering 90, 3 (Feb. 1, 2009): 400-408.Based on the table above, which of the following statements is not correct?

A. Cookies with the most fat were the cookies that were not only the flattest but also the largest in diameter. B. Cookies with the least fat were not only the heaviest but also the thickest cookies. C. Cookies with the most fat were the cookies that were not only the flattest but also the driest with the least moisture. D. Cookies with the most fat were the cookies that were not only the thickest but also the largest in diameter.

Biology & Microbiology

Inflammatory lesions include ulcers, cellulitis, and ______.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

The number of possible gametes, each with different chromosome compositions, is 2n, where n equals ________

A) the number of genes B) the number of alleles C) the diploid number D) the number of offspring E) the haploid number

Biology & Microbiology