The four main categories of organic macromolecules are
A. monosaccharides, disaccharides, trisaccharides, and polysaccharides.
B. proteins, DNA, waxes, and sugars.
C. carbohydrates, lipids, proteins, and nucleic acids.
D. RNA, DNA, steroids, and fats.
E. lipids, starches, DNA, and protein.
Ans: C. carbohydrates, lipids, proteins, and nucleic acids.
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Which of the following is an advantage of sexual reproduction?
a. decreased genetic diversity b. increased genetic diversity c. decreased sexual selection d. increased sexual selection
What is the movement of part of one chromosome to another chromosome called?
A) inversion B) duplication C) deletion D) translocation
If two individuals who are heterozygous for two traits that display incomplete dominance (e.g., AaBb) mate and have
offspring, how many different phenotypes are possible?
a. 1 b. 3 c. 6 d. 9 e. 16
Approximately ____ of Earth’s total primary production is supplied by the ocean’s primary producers
a. one fourth b. one third c. half d. three fourths e. all