science, biology

41,328 results, page 83
  1. science

    how did organic compounds get this name?
  2. science

    What keeps proteins within the bilayer?
  3. science

    what are three of the populations in an ecosystem near you
  4. science

    can you tell me something about sciense and tecnology
  5. Science 7R Q2

    why do we classify things?
  6. SCIENCE

    How do mollusks feed?
  7. science

    What is the meaning of calibration?
  8. science PLEASE HELP URGENT:(

    how do i convert 4 g/ml to kg/m^3 ?
  9. science

    what is the scorpio constellation?
  10. Science

    What is waste management?
  11. science

    i need a arostic poem on w e g e n e r and h e s s
  12. physical science

    absolute zero is the same as
  13. Science

    When was first microscope invented?
  14. Science

    What are rocks and what are they made of?
  15. SCIENCE

    10 EXAMPLE OF SOLUTION AND COLLOIDS
  16. SCIENCE

    how does a pencil work?
  17. science

    what is stored energy?
  18. Science

    How exactly does gravity work?
  19. SCIENCE

    WHAT IS A SIMPLE PLANT?
  20. science

    the diostance between two points
  21. AP Biology- Molecular Genetics

    The correct sequence between genes and their phenotypic expression is a) RNA-DNA-protein-trait b) DNA-RNA-protein-trait c) Protein-DNA-RNA-trait d) trait-DNA-RNA-protein I think it is either b or d but do not know if the trait is at the beginnig or end...
  22. AP Biology

    Cells transport substances across their membrane. Choose THREE of the following four types of cellular transport Osmosis Active transport Facilitated diffusion Endo/exocytosis For each of the three transport types you choose, a. Describe the transport
  23. Biology

    You find 3 trees where each tree gives a different coloured fruit: red, pink or orange. You perform crosses between all three trees and get the following results: P: red x pink ---F1: ½ red: ½ pink P: red x orange --- F1: ½ red: ½ orange P: pink x
  24. biology

    Incomplete/Codominance Problem In snapdragons the dominant allele "R" produces red flowers and its recessive form, "r" produces white flowers. Normally what would you expect for the F1 genotype and phenotype ratios if a homozygous red flower and a
  25. the most dangerous game by richard connell reading

    i did all the question except for these 3 characterization chart w/ 5 textually supported inferences specific to protagonist and 5 textually supported inferences specific to the antagonist. static/flat character with text support of intended stereotype
  26. BIOLOGY

    Which of the following statements is NOT true about gamete formation in mammals? a)In the female, the separation of cytoplasm is unequal during meiosis. b)Only one of the four cells resulting from meiosis goes on to become an oocyte. c)Only one of the four
  27. biology

    Which of the following statements is true? 1.Both unicellular and multicellular organisms are at risk of having too much water entering their cells if they are exposed to water containing no salts. 2.Only multicellular organisms have structures that enable
  28. Biology

    Which of the following situations best shows Darwin’s theory of natural selection as a mechanism for evolution? A. The long neck of a giraffe is the result of its ancestor continually reaching for higher branches. B. The ancestor of the snake had its
  29. Biology

    As should be clear from reviewing the midsagittal plane through the brain, which statement below most accurately describes the components of the ventricular system and/or the circulation of cerebrospinal fluid (CSF)? CSF flows directly from one lateral
  30. science....please help me!! im clueless right now

    I am doing a science project on the "Effect of humidity on the hair of mammals?" that's my topic. Now my teacher wants me to make outline but first I have to make up questions on my topic..... Can you help me make up 2 questions for this topic? -Thanks a
  31. Statistics

    An instructor for a college biology lab has each of her 12 students (you are one of those 12 students) take their own SRS of 25 plants from an experimental field. She lets you know that the heights (measured in cm) of the plants in the field follow a
  32. Biology

    Under which condition can you hold your breath longer? First breathe in as much as you can and hold your breath, and time it. (Lungs completely inflated) After, breathe out as much as you can, hold your breath, and time it. (Maximal expiration). Which
  33. biology

    Which of the following is true about the relationship between energy and chemical reactions? Activation energy is required for a chemical reaction to occur. Activitation energy is not necessary in a chemical reaction which releases energy. Chemical bonds
  34. biology

    Color blindness is a defect in vision of colors, this defect is due to a localize-homologous segment of chromosome X. In the document I have a pedigree which the parents and their children are normal; but then most of the children got married to a diseased
  35. English

    I urgently need to write a short email to a scholar specialized in Comenius projects. After presenting myself and the school I'd like to include this: 1) As you are a scholar with an in-depth knowledge of Clil within a Comenius project, I would like to
  36. Biology

    Last ones on the test-- 37. Hyphae a. increase the surface area-to-volume ratio of the fungus b. have slender filaments c. allow for efficient uptake of nutrients d. all of the above D? 38. In which process do tRNA molecules attach amino acids to the
  37. Science

    A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not
  38. Science

    A science teacher was curious to see whether offering money for good grades would increase student performance on a test. The teacher offered half the students in the class $5.00 if they got an A on their next test. The other half of the class was not
  39. Science

    A science teacher was curious to see whether offering money for good grades would increase student peformance on a test. The teacher offered half of the students in the class $5.00 if they got an A on their next test. The other half of the class was not
  40. Biology

    The gene encoding for body color in zombie flies is "X-linked". Gray bodies are the wild-type trait and blue bodies are caused by a mutation - Set up a cross between a male with a blue body and a female who is homozygous dominant for a gray body. Indicate
  41. Biology

    For each of the folliwng groups of animals (marine invertebrates, marine vertebrates, fresh-water animals & land animals) describe osmosregulatory probkems they face and how they cope with them? I think what you need can be found at the following 3 sites:
  42. Biology

    How do scientists calibrate a molecular clock? A)They determine the number of mutations accumulated in a gene of a species of known age. B)They compare the ticking of the molecular clock with that of the atomic clock. C)They use the clock that ticks at the
  43. cell biology

    The production of cAMP directly regulated by two enzyme, ___________ and_______. This former is ___________ a protein, when latter is a _________ protein. a. phospodiesterase (PED),Adenylyl ccyclase(AC), cytosolic, peripheral. b. PDE, AC, peripheral,
  44. English IV

    Would this work for a thesis on Douglas Adams: Douglas Adams used Proto Science Fiction to write The Hitchhiker’s Guide to the Galaxy and uses satirical tone when discussing politics. welcome :) that's good you might want to be more spacific in what
  45. Biology DUE TOMORROW

    Hello, I need help doing a 16 box Punnett Square on this problem: Tongue rolling (rolling the tongue into a “taco”shape) is dominant over not having the ability to roll the tongue (R and r- respectively). Having free earlobes is dominant to attached (F
  46. English

    This is the second part of my letter. I know it is still very confusing but I don't have a clear idea about the project yet. Thank you very much for helping me! 1) As a matter of fact, our school had, within the scientific branch, a sort of course of
  47. Biology

    1.A white flowered plants is crossed with a plant that is heterozygous for the trait. What percentage of he offspring will have purple flowers? 2.Two plants, both heterozygous for he gene that controls flower color are crossed. What percentage of their
  48. biology

    In chickens, males have two Z sex chromosomes (ZZ) and females have one Z and one W sex chromosome (ZW). The mechanism for inheritance of the sex chromosomes is exactly the same as for X and Y sex chromosomes in other species. In chickens the character of
  49. biology

    In chickens, males have two Z sex chromosomes (ZZ) and females have one Z and one W sex chromosome (ZW). The mechanism for inheritance of the sex chromosomes is exactly the same as for X and Y sex chromosomes in other species. In chickens the character of
  50. biology (multiple choice!)

    Evolutionary adaptations that help diverse animals exchange matter with the environment include a. gastrovascular activity, two-layered body, and torpedo shape. b. large volume, long tubular body, and wings. c. complex internal structures, small size, and
  51. biology

    A true breeding brown mouse is mated with a true-breeding white mouse and all their offspring are brown. If two of these brown offspring are mated, what percentage of the F1 and F2 generations will be brown?
  52. Biology

    Hi Im just wondering what are the similarites and differences between gas exchange and cellular respiration ? similarities: Both are involved in energy production. Gas x supplies o2 to the mito which creates usable energy for the body. differences;
  53. Biology

    Which of the following statements about NAD or NADH is FALSE? a) NAD is converted to NADH during both glycolysis and the Krebs cycle b) NAD possesses more chemical energy than NADH c) NAD picks up hydrogen ion (H+) and electrons removed from food, and
  54. human biology!!!

    hi i have a big problem got a practical, the effect of catalase on the rate of reaction on hydrogen peroxide. but i don't know the amount of hydrogen peroxide i should use or the source of enzyme? can anyone help? the source of enzyme cant be liver or
  55. Biology

    2. The advantages of vascular tissue over nonvascular tissue are evident in a. whether organisms have alternation of generations b. an organism's size and complexity c. the number of individual offspring produced by each organism d. all of the above B? 3.
  56. Biology

    2. The advantages of vascular tissue over nonvascular tissue are evident in a. whether organisms have alternation of generations b. an organism's size and complexity c. the number of individual offspring produced by each organism d. all of the above B? 3.
  57. AP Biology- development and reproduction

    I'm trying to teach myself the rest of my AP bio book before the exam, and i don't get this stuff on development and reproduction. my teacher said she didn't know because she hasn't had to teach this stuff before, so any help would be great! 1. hows the
  58. biology

    The conversion of molecule S to product P has a Keq = 2.0. Two different, but related enzymes, A and B, can catalyze the reaction. The product P serves as an allosteric inhibitor of enzyme B, but not of enzyme A. A. 10 mM S is placed into three separate
  59. biology

    In some dogs, long hair (L) is dominat over short hair (l), and wavy hair (W) is dominant over straight hair(w). Draw a cross between a dog that is homozygous for long hair and straight hair with a dog that is homozygous for short hair and wavy hair. What
  60. Language Arts ~CHECK MY ANSWERS~

    Are these answer are correct? Please be 100% correct / honest. Directions: For questions 7–15, rewrite each sentence, adding commas where needed. 7) While I was researching skateboards, I found an interesting old newspaper. 8) In the June 29, 1999
  61. Biology

    Plz i need help. Plants are green because the pigments in plants reflect green light. Blue and red light give them the most energy to power photosynthesis. You are conducting an experiment to see how different colors of light affect the growth of plants.
  62. biology

    1. Which sentence from the section "Line Graphs" BEST introduces when to use a line graph to display information to the reader? A line graph uses dots connected by lines to show how amounts change over time. A dot over each month would represent the
  63. Biology

    14. Which of the following is the blood vessel with the largest diameter? a. capillary b. artery c. vein d. venule Not sure...? 16. As a defense against pathogens, mucous membranes a. cover all of the body's surfaces to act as an impenetrable barrier b.
  64. English

    Thank you for your corrections. Can you please check the grammar in the following letter, please? 1) Do you think you can help me find a school in your area which could be interested in an e-mail correspondence with our school? It is a high school with an
  65. Biology

    Iwas woudnering if you could help me with this problem. The answer key says that the answer is D and I have no idea why. The chart, included in the link, reads off a value of about .5 for the G locus for the year 1980 Finding the percent heterozygous
  66. math

    What is the ratio of English and Science majors to Math and History majors, when you know that there are 400 students majoring in English and 150 students majoring in Science and 200 students majoring in Math and 300 students majoring in History?
  67. Science

    I did a science experiment on batteries. I ran five brands of AA Alkaline batteries until they would no longer run a small light bulb. I measured the voltage of each battery every hour. I did this experiment four times using the same type of light bulb and
  68. Biology

    1) What is the minimum number of single nucleotide substitutions that would be necessary for each of the following amino acid replacements? a. trp -> lys b. met -> his c. tyr -> gly d. ala -> asp   2) A mutation is isolated that can not be
  69. Science

    (just a quick science question, pls correct my answer if im wrong..) Which of the following statements is true A.) there is more water on earth now than there was millions of years ago **** B.) there is less water on earth now than there was millions of
  70. 6th grade math

    it takes harrison 1 1//2 hours to finish his history project. it takes miles 3 2/3 hours to finish his science project. how many times as long does it takes miles to finish his science project than it takes harrison to finish his history project? Do I have
  71. biology

    Genetic problem: A brown-eyed woman whose father was brown-eyed and whose mother was blue-eyed married a blue-eyed man whose father and mother were both brown-eyed. The couple has a blue-eyed son. For which of the individuals mentioned can you be sure of
  72. Biology

    A mutation of c to t in position 3 and another of G to A in position 7 results in the production of a different sequence of ammino acids work out the new sequence and suggest why it might change the function of the new protein I get the sequence of
  73. Biology

    Need help with these-- 8. Medicinal uses of plants include all of the following EXCEPT a. cancer treatment b. treatment of cardiac disorders c. decongestant d. albinism treatment D? 9. Two plants that are used to make BOTH paper and cloth are a. bamboo and
  74. Science 7R - The Human Body Prep Test

    I have a test tommrrow on the The Human Body and I asked my science teacher if she can post a castle learning assignment about the Human Body (the day before the test she always post a caslte learning assignment for us to study and do well on the test the
  75. Gr 11 Biology

    Which person do you think would be more physically fit: a) an individual with a normal expiratory reserve volume and high vital capacity OR B)an individual with a high expiratory reserve volume and normal vital capacity
  76. science

    What are the 4 nuclotides found in DNA?
  77. science

    how many electrons are in the sodium sulphate?
  78. PS.225 SCIENCE

    NARRATIVE DNA
  79. science

    which of the following is the best course of action when it comes to using natural resources
  80. Science

    If you eat more than 5 advils, what's the harm?
  81. Physical Science

    Phairade roul
  82. life science

    explain about polyploidy
  83. SCIENCE

    History of how this ginger has been used as medicine
  84. Science

    in scientific inquiry what is communicating?
  85. science

    what is the place where an object balances?
  86. science

    the muscle cell function is what?
  87. Science

    What is the difference between an atom and a molecule?
  88. science

    why something with only one cell can be considered to be an organism?
  89. science

    do you think all horses output exactly 1 horsepower and why ...please...help...me:(
  90. Science

    Who came first the egg or the hen? Please Justify
  91. Science

    What is the lowest atmosphere on earth?
  92. science

    formula for kinetic energy?
  93. science

    what are the five stages that a living organism goes through?
  94. political science

    what is ''reasonable search''?
  95. science

    why barium comnpounds are toxic
  96. science

    Why should you visit the sun? what is special about it?
  97. science report card

    What does '% of Spread' mean?
  98. Science

    WHY is chlorophyll neccessary in photosynthesis?
  99. science

    Would it be possible to put my brain in a monkey?
  100. science

    Meters per second(m/sec) is a unit of what?