Biology

which method of microbial control introduces double-strand breaks into dna
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what component of the dermis is involved in allergic reactions
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Which statement about the correlation between body fat and onset of puberty among females is correct?a. There is a positive correlation between body fat and onset of puberty among females.b. There is a negative correlation between body fat and the onset of puberty among females.c. There is a correlation between body fat and the onset of puberty only among female adolescents who are Native American.d. There is no correlation between body fat and the onset of puberty among females.
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During semiconservative ____ the DNA is duplicated prior to binary fission.
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Help with biomass worksheet, thank you so much!
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nasal decongestants phenylephrine and pseudoephedrine act to shrink dilated blood vessels in the nasal passages to relieve congestion. they are called sympathomimetics because they act similar to sympathetic neurotransmitter norepinephrine. which of the following would be an undesirable side effect associated with their use? nasal decongestants phenylephrine and pseudoephedrine act to shrink dilated blood vessels in the nasal passages to relieve congestion. they are called sympathomimetics because they act similar to sympathetic neurotransmitter norepinephrine. which of the following would be an undesirable side effect associated with their use? drowsiness arm numbness nervousness muscle aches
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T/F : The world's oceans are largely seen as a carbon sink given their ability to absorb and store large quantities of carbon dioxide.
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Which of the following is NOT associated with the parasympathetic division of the autonomic nervous system (ANS)?A. emergency actionB. sympathetic actionC. terminal gangliaD. adrenal medulla
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suppose you were asked to classify an organism with the following characteristics: single-celled, aquatic, motile (able to swim), and engulfs food particles from the water it lives in, contains chloroplasts with chlorophyll, is capable of photosynthesis, and has an apparent nucleus. to which group would you assign this organism?
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temporary custom made crown that resembles the tooth being restored
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In which structure are the major cardiac pacemaker cells located?a.AV nodeb.Bundle branchesc.SA noded.Purkinje fiberse.gap junctions
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Which of the following are phagocytic cells descended from monocytes?A) alveolar macrophagesB) dendritic cellsC) microglial cellsD) alveolar macrophages and dendritic cellsE) alveolar macrophages and microglial cells
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The first plants of succession in the park help______the dunes and their root and_____ to the sand
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histone deacetylase (hdac) inhibitors are commonly used as mood stabilizers or in the treatment of neurodegenerative diseases. what effect would a hdac inhibitor have on the target cells?
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The processes of photosynthesis and cellular respiration are involved in the cycling of carbon dioxide (CO) andoxygen (o) among organisms.Select at least one check box in each row to indicate the organisms that perform each process that contributes tothe carbon cycle.Produce CO that is used in photosynthesisUse CO in photosynthesisProduce O that is used in cellular respirationUse O in cellular respiration
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mr. f's body is trying to increase his fluid levels. it could be responding to abnormal blood osmolarity or to abnormal blood pressure. how will you tell which problem he has? the answer is in the feedback loops.
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how much energy is required to ionize a hydrogen atom in its ground state
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what term is used to describe the group of organisms that consists entirely of single-celled, eukaryotic organisms?
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there are no known motor proteins that move on intermediate filaments. suggest an explanation for this observation
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What is the difference in climate between temperate rain forests and temperate deciduous forests?
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Aseptic hand washing techniques include all of the following exceptA. using a nailbrush to scrub under the nails and cuticles.B. using liquid soap.C. turning off the faucet with the hands.D. removing all jewelry.
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replication of chromosomes occurs between meiosis i and meiosis ii t/f
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the process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called
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- Sciences TEMPERATURE ("C) ESTION 3 HIW table below shows the results of a sturly that investigated the effect of temperature light on the yield of tomatoes in two greenhouses on a farm 31 NSC -10 5 10 15 20 25 30 AVERAGE YIELD OF TOMATOES PER PLANT (kg) HIGH LIGHT LEVELS LOW LIGHT LEVELS 0.5 1.5 Test: Ecosystems 3,0 3,6 3,5 2,5 2,5 5,0 8.5 7.8 6.2 State TWO steps the investigator may have taken into consideration during the planning stage of the investigation.
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