Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Created by Terri Street © 2000 Background images courtesy of abc.com 1,000,000 500,000 250,000 125,000 64,000 32,000 16,000 8,000 4,000 2,000 1,000 500 300 200 100 Click to return to question, Cont-P to switch to the pen, cross out two incorrect answers, then Cont-A to switch back to pointer. Click to return to the question and poll the class Click on link to Ask Jeeves, or click on this oval to return to question and ask a friend The correct steps of the scientific method in order are__ A. Hypothesize, experiment, Know the problem, research & take observations C. Hypothesize, research & take observations, experiment, Know the problem B. Know the problem, research & take observations, Hypothesize, experiment D. Know the problem, Hypothesize, experiment, research & take observations B. Know the problem, research & take observations,hypothesize, experiment Back to Board This is used as a comparison when conducting an experiment. A. Control B. Independent variable C. Dependent variable D. Hypothesis A. Control Back to Board What process moves water across a membrane from high to low concentrations? A. Diffusion B. Pinocytosis C. Osmosis D. Exocytosis C. Osmosis Back to Board All of the following are functions of the plasma membrane EXCEPT A. protective boundary C. selectively permeable B. transforms energy D. recognizes certain chemicals B. transforms energy Back to Board Both chloroplasts & mitochondrion … A. absorb sunlight C. use glucose B. need carbon dioxide D. transform energy from one form to another D. transform energy from one form to another Back to Board Enzymes are members of this type of macromolecule A. carbohydrates B. lipids C. nucleic acids D. proteins D. proteins Back to Board Because water has this property, life is able to exist on Earth A. polarity from hydrogen bonds B. clear C. wetness D. has no odor A. polarity from hydrogen bonds Back to Board The building blocks of protein are A. amino acids B. fatty acids C. nucleotides D. monosaccharides A. amino acids Back to Board An atom does NOT contain A. electrons B. DNA C. neutrons D. protons B. DNA Back to Board The 4 major macromolecules are A. DNA, RNA, B. carbs, lipids, proteins, nucleic acids C. amino acids,nucleic acids, D. nucleotides, lipids, Amino acids, glucose Ribosomes, mitochondrion phospholipids, glucose B. carbs, lipids, proteins, nucleic acids Back to Board This Mendelian law relates to the separation of homologous chromosomes A. Law of independent assortment C. law of dominance B. Law of segregation D. Law of recessiveness B. Law of segregation Back to Board Meiosis results in variations within a species for all EXCEPT the following reason. A. separates homologous chromosomes C. produces millions of different combinations of chromosomes B. Produces identical cells D. Creates sex cells that will randomly join together B. Produces identical cells Back to Board How does meiosis maintain a constant chromosome number within a species? A. Cells split twice B. Cells split once C. Homologous chromosomes separate, then sister chromatids separate D. Homologous chromosomes separate, cells split,then sister chromatids separate & cells split again D. Homologous chromosomes separate, cells split,then sister chromatids separate & cells split again Back to Board The resulting offspring from a dihybrid cross is A. All homozygous dominant B. 2 heterozygous, 2 recessive C. All homozygous recessive D. one homozygous dominant, 2 heterozygous, 1 recessive D. one homozygous dominant, 2 heterozygous, 1 recessive Back to Board Mendel’s Laws include all but the following: A. law of recessiveness C. law of dominance B. Law of segregation D. law of Independent assortment A. law of recessiveness Sorry, try again! Thanks for playing!