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7.  A. Hypothesize, experiment, Know the problem, research & take observations  C. Hypothesize, research &C. take observations, experiment, Know the problem  B. Know the problem, research &B. take observations, Hypothesize, experiment   D. Know the problem, Hypothesize, D.  experiment, research & take observations The correct steps of the scientific method in order are__

8. Back to Board B. Know the problem, research & B. take observations,hypothesize, experiment

9.  A. Control A. Control  C. Dependent C. Dependent variable  B. Independent B. Independent variable  D. Hypothesis D. Hypothesis This is used as a comparison when conducting an experiment.

10. Back to Board A. A. Control

11.  A. Diffusion A. Diffusion  C. Osmosis C. Osmosis  B. Pinocytosis B. Pinocytosis  D. Exocytosis D. Exocytosis What process moves water across a membrane from high to low concentrations?

12. Back to Board C. Osmosis

13.  A. protective boundary A. protective boundary  C. selectively permeable C. selectively permeable  B. transforms energy B. transforms energy  D. recognizes certain D. recognizes certain chemicals All of the following are functions of the plasma membrane EXCEPT

14. Back to Board B. tB. transforms energy

15.  A. absorb sunlight A. absorb sunlight  C. use glucose C. use glucose  B. need carbon dioxide B. need carbon dioxide  D. transform energy from D. transform energy from one form to another Both chloroplasts & mitochondrion …

16. Back to Board D. transform energy from transform energy from one form to another

17.  A. carbohydrates A. carbohydrates  C. nucleic acids C. nucleic acids  B. lipids B. lipids  D. proteins D. proteins Enzymes are members of this type of macromolecule

18. Back to Board D. proteins

19.  A. polarity from A. polarity from hydrogen bonds  C. wetness C. wetness  B. clear B. clear  D. has no odor D. has no odor Because water has this property, life is able to exist on Earth

20. Back to Board A. p A. polarity from hydrogen bonds

21.  A. amino acids A. amino acids  C. nucleotides C. nucleotides  B. fatty acids B. fatty acids  D. monosaccharides D. monosaccharides The building blocks of protein are

22. Back to Board A. a A. amino acids

23.  A. electrons A. electrons  C. neutrons C. neutrons  B. DNA B. DNA  D. protons D. protons An atom does NOT contain

24. Back to Board B. DNA

25.  A. DNA, RNA, A. DNA, RNA, Ribosomes, mitochondrion  C. amino acids,nucleic acids, C. amino acids,nucleic acids, phospholipids, glucose  B. carbs, lipids, B. carbs, lipids, proteins, nucleic acids  D. nucleotides, lipids, D. nucleotides, lipids, Amino acids, glucose The 4 major macromolecules are

26. Back to Board B. carbs, lipids, proteins, nucleic acids

27.  A. Law of independent A. Law of independent assortment  C. law of dominance C. law of dominance  B. Law of segregation B. Law of segregation  D. Law of recessiveness D. Law of recessiveness This Mendelian law relates to the separation of homologous chromosomes

28. Back to Board B. Law of segregation

29.  A. separates homologous A. separates homologous chromosomes  C. produces millions C. produces millions of different combinations of chromosomes  B. Produces B. Produces identical cells  D. Creates sex cells D. Creates sex cells that will randomly join together Meiosis results in variations within a species for all EXCEPT the following reason.

30. Back to Board B. Produces identical cells

31.  A. Cells split twice A. Cells split twice  C. Homologous chromosomes C. Homologous chromosomes separate, then sister chromatids separate  B. Cells split once B. Cells split once  D. Homologous chromosomes D. Homologous chromosomes separate, cells split,then sister chromatids separate & cells split again How does meiosis maintain a constant chromosome number within a species?

32. Back to Board D. Homologous chromosomes separate, cells split,then sister chromatids separate chromatids separate & cells split again

33.  A. All homozygous A. All homozygous dominant  C. All homozygous C. All homozygous recessive  B. 2 heterozygous, B. 2 heterozygous, 2 recessive  D. one homozygous dominant, D. one homozygous dominant, 2 heterozygous, 1 recessive The resulting offspring from a dihybrid cross is

34. Back to Board D. one homozygous dominant, 2 heterozygous, 1 recessive

35.  A. law of A. law of recessiveness  C. law of dominance C. law of dominance  B. Law of segregation B. Law of segregation  D. law of D. law of Independent assortment Mendel’s Laws include all but the following:

36. A. law of recessiveness

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