Biology

What type of organism is least likely to be represented in the fossil record of the Cambrian period?Multiple ChoiceA large, rare species of lobsterA medium-sized, common shark speciesA large, common marine bony fishA small, common jellyfish
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11) how is the cell cycle controlled? what is the function of the p53 protein? what other name does p53 have?
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what two components are directly related to aerobic metabolism
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persons infected with hiv often die of opportunistic diseases because
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while reviewing all the functions pertaining to growth factors, the group of students will be discussing which cellular processes? select all that apply.
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based on these probabilities, determine the number of individuals of each genotype you would expect to see in a sample of 113 individuals chosen at random from the jpt population. enter these predictions in the second row of the table. round your answers in the second row to the nearest whole number. in the jpt population genotype aa genotype ag genotype gg the probability of the genotype occurring 0.28 select answer select answer the expected number of individuals with the genotype in a randomly chosen sample of 113 people 32 select answer select answer the observed number of individuals with the genotype in the randomly chosen sample of 113 people 33 54 26 assessment question based on this table, the current jpt population select answer to have achieved (or be very close to achieving) a genetic equilibrium with respect to the variation at position rs1799971.
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Why is gene regulation important in multicellular eukaryotic cells?A. all cells need to express certain genes, like those used for glycolysisB. cells need to use different energy sources at different timesC. specialized cells only need to express genes useful for their cell functionD. different cells need different ribosomes to make specific proteins
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Which of the following BEST explains the role of DNA polymerase?a) To assemble daughter nucleotides on the parent strand.b) To unwind the DNA double helix.c) To build the RNA primer.d) To join the adjacent Okazaki fragments.e) To assemble strands of RNA nucleotides
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T/F. catabolic reactions are generally degradative and hydrolytic.
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Differential media results in which of the following growth characteristics?A. Different color coloniesB. Different media color post incubationC. PrecipitatesD. Gas bubblesE. All of the choices are correct
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why is blood pressure important for physiological function and survival
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Write the sequence of steps and the net reaction for the biosynthesis of phosphatidylcholine by the salvage pathway from oleate, palmitate, dihydroxyacetone phosphate, and choline. Starting from these precursors, what is the cost (in number of ATPs) of the synthesis of phosphatidylcholine by the salvage pathway?
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when testing insulin levels on swimming fish hyperglycemia results inMultiple Choice- slow, lethargic movements.- fast, darting movements.- regular, smooth movements.
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Label the reproductive structures of the female pelvis in this superior view of the pelvic cavity.
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what is the significance of the directionality in protein digestion
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which laboratory test is used to identify the presence of a small amount of blood in gastric secretions and stools?
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a true-breeding tall plant is crossed to a true-breeding dwarf plant. the offspring in the f1 generation are all tall plants. the f1 generation is then crossed to yield a f2 generation. what is the phenotypic ratio of the f2 generation? multiple choice question.
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the following figures give the systolic blood pressure of 16 joggers before and after an 8-kilometer run: jogger before after normal approximation to the binomial distri- 1 158 164 2 149 158 3 160 163 4 155 160 5 164 172 6 138 147 7 163 167 8 159 169 9 165 173 10 145 147 11 150 156 12 161 164 13 132 133 14 155 161 15 146 154 16 159 170 use the sign test at the 0.05 level of significance to test the null hypothesis that jogging 8 kilometers increases the median systolic blood pressure by 8 points against the alternative that the increase in the median is less than 8 points.
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How might enlargement of the prostate interfere with urination or the reproductive ability of the male?
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to be identified as primates, fossils must show what primate trends in anatomy?
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which is the term used for a mycosis, usually of the foot or hand, that looks superficially like a tumor?
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Which law states that pressure exerted by a gas is directly proportional to temperature, if the volume of the gas is held constant?Amontons' lawBoyle's lawCharles' lawThe law of gravity
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Why do Mexican blind cavefish have eyes?
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this major plant association features a mix of very low (in height) plants, including grasses, forbs, small shrubs, mosses, and lichens, but no trees.
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