science, biology

41,074 results, page 58
  1. Biology

    I need help making a concept map. I have to put the following words into one and i don't know where to start. Gene DNA Chromosome Mutations Protiens Central Dogma Signal Transduction Nucleus mRNA tRNA rRNA Ribosomes Autosomes Sex Chromosomes Recessive
  2. math

    A reading list contains 3 historical books and 4 science-fiction books. What is the probability that Tena will randomly choose a historical book for her first report and a science-fiction book for her second?
  3. Biology

    Need help with these: 33. In addition to causing disease, protests also affect humans through a. their role in the nitrogen cycle b. their antibiotic properties c. their ability to clean up oil spills d. all of the above A? 35. Fungi obtain food by a.
  4. Biology

    The trachea is ___________ to the lungs Toes are _______________to the shoulders Esophagus is _____________ to trachea Pinna is ______________ to tail Liver is ______________ to stomach Options are Anterior, Posterior, dorsal, ventral, lateral, median,
  5. biology

    Problem 5: Functional Groups On the structure of MTX below, identify the functional groups that are present by dragging the functional group name listed below onto the appropriate target boxes on the structure.
  6. Genetics/Biology

    What kind of inheritance is it when the offspring have spots of different colors from its parents? Like a brown dog with a white dog makes a white/brown spotted dog.
  7. biology

    9. A certain radar installation transmits electromagnetic radiation with a wavelength of 2.5 cm. What is the frequency of this radiation? 10. For the radar in #9 above, how many seconds will it take for a signal to reach an airplane 15 km away, and return
  8. biology

    Discuss how the concept of time applies to ecological situations and evolutionary changes. Do ecological time and evolutionary time ever correspond? If so, what are some examples? i don't get this question at all...please help thanks in advance
  9. Biology

    What will happen to a turgid plant cell with an initial water potential of 0.5 MPa when dropped into a large beaker of water and solute that has a water potential of -1.5 MPa?
  10. Biology

    Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your
  11. Biology!!!!!!!!!!!!!!!!

    In preparing some blood for observation with a microscope, a student puts a drop of blood into a test tube containing 2 cm3 of water. After mixing, he examines a drop of the mixture. Explain why he cannot see any blood cells under the microscope.
  12. biology

    This question consisted of a pedigree which involves certain inbred individuals which you are going to identify. The inbred coefficient is for one of the first cousins named Stormy is F = 0.08. An individual called Shady is a parent. Question: Is Shady
  13. biology

    What part absorbs light and converts it into nerve impulses What part bends light that enters the eye so that what you see is focused on your retina What part transfers the image the eye sees to the brain for perception
  14. Biology Lab gr 12

    hi, i did this lab, from this website and I was wondering if anyone could come up with 3 sources of error, and they can't be human error. Thanks! You are saving me! Seeing as I am not allowed to post to the website :(, search on google liver lab with sand,
  15. English

    Could you please check these sentences? Thank you. 1) We're looking for a high school in which subjects such as biology or geography are taught in English so that in the future our students could carry out a project on a common theme in English. 2) I
  16. AP Biology

    The type of learning that is involved in predator/prey interactions where an alteration in behavior is a response to stimulus is called? A. Habituation Learning B. Cognitive Learning C. Instinctive Learning D. Associative Learning E. Non-associative
  17. Biology

    Suppose you have monohybrid pea plants in your garden and find that they produce round seeds to wrinkled seeds in the ratio of 3:1. If the alleles are designated R and r, respectively, what are the probable genotypes of the wrinkled seeds produced by your
  18. Biology

    The polymerase chain reaction (PCR) is useful for: A) making many copies of a small amount of DNA B) creating recombinant plasmids C) analyzing a person’s fingerprints D) cutting DNA into many small pieces E) allowing restriction enzymes to cut DNA at
  19. biology

    An individual with the genetic condition cystic fibrosis has CFTR protein with the amino acid histidine (at position 482), where the normal CFTR protein has arginine. (No other changes are observed in the protein.) This is the result of a _________
  20. biology

    The mouth, small intestine, and kidneys have functions that involve the a. digestion of food, synthesis of vitamins, and filtering of the blood. b. intake, digestion, absorption, and elimination of food and its wastes. c. secretion of bile, digestion of
  21. biology

    How is recombinant DNA technology used today? I have to use bacterial chromosomal or genomic DNA,plasmid,restriction enzyme, vector, sticky end, transformation, DNA ligase, gene cloning,restriction fragment, and restriction site in the answer.
  22. biology

    what animals and plants are unique in the Belize's barrier reef system? would it be; blue green algae, mangroves and large seagrass meadows.marine turtles, manatees and marine crocodiles? I also need to find the animals and plants that are diversity in
  23. Biology

    One part of the brain if stimulated during adolescence, will form two distint regions. The area of the brain is referred to as: A) the occiptal lobes B) the pituitary glands C) Broca's area D) the parietal Lobe I am unsure of what the answer is, although
  24. biology

    In two to three well-developed paragraphs, explain how the graph below helps support the concern that burning fossil fuels has changed the atmosphere. Describe, in your own words, the change shown in the graph and how this change is occurring in the
  25. Biology

    Research and discuss an event in Charles Darwins' life that lead to his theory of evolution. Events could be directly in Charles Darwin's life or could be individuals whose ideas Darwin incorporated into his work. Besides the voyage to Beagle and the visit
  26. biology

    Why do bamboos have leaves that encircle the stem? (Is it for some kind of structure support?) Also, why are there leaves at the top of the plant on lateral branches? There is graffiti at the base of some of the bamboo shoots. Why doesn't the graffiti grow
  27. biology

    You need a 5 microgram glucose/ml aqueous solution, but the lab balance is accurate to only 0.01g (ie., it displays 2 digits to the right of the decimal point) Describe 2 methods by which you could accurately prepare this solution using the lab balance. I
  28. Chemistry - Biology

    Explain why glucose is improtant to humans ? Ans:Glucose is important to the body cecause it helps the reporduction of cells, coposition of proteins and nucleic acids foundin all cells. It helps growth and repairs tissues . Is that correct??
  29. biology

    Why do bamboos have leaves that encircle the stem? (Is it for some kind of structure support?) Also, why are there leaves at the top of the plant on lateral branches? There is graffiti at the base of some of the bamboo shoots. Why doesn't the graffiti grow
  30. biology

    Zola has a splinter in her finger. which of the following actions should she take before she uses a sewing needle to remove the splinter?Give reasons for your answer. a- wipe the needle with a clean cloth. b- wash the needle in hot soapy water. c- pass the
  31. Biology

    There are many differences between the two major cell types: prokaryotes and eukaryotes. However, the different structures and modes of organization perform basically the same functions. Briefly compare and contrast the different features or functions of
  32. biology

    Small gene big plasmid Question 2 Part E wrong. Question 2 Part F Determine the DNA sequence of PCR products. I do not understand how to handle this problem. On home works they were wrong and the solutions were confusing. Please give me a clue.
  33. statistics check

    The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The results were as follows. (Give your answers correct to two decimal places.)
  34. Statistics

    I already found part A just need help with B! The computer-science aptitude score, x, and the achievement score, y (measured by a comprehensive final), were measured for 10 students in a beginning computer-science course. The results were as follows. (Give
  35. AED

    1. As a construct, what is your approach to teaching?How does inquiry-based learning differ from the tradional model, with the teacher as the source of all instruction? Provide exapmles of each style. 2. How can you provide relevant hands on learning ina
  36. Biology

    You have a stock solution with following components: glucose: 44 g/L NaCl: 191 g/L Tris Buffer: 275 g/L You mix 71 mL of the solution with water and bring the resulting solution to a final volume of 750 mL. What is the final concentration of glucose in
  37. Biology

    A farmer wants to propagate a good variety of a crop in a way which maintained all its desirable traits. Which of the following methods should be used? A. Self Pollination B. Vegetative propagation C. Growing seeds produced from this variety D.
  38. Biology

    1.The four rows of data below show the boiling points for a solution with no solute, sucrose (C12H22O11), sodium chloride (NaCl), and calcium chloride (CaCl2) (not in that order). Which boiling point corresponds to calcium chloride?
  39. biology

    When an impulse moves down the axon, a. sodium ions first rush out of the cell. b. a small part of the axon momentarily reverses its polarity. c. the resting potential of the cell does not change. d. potassium ions are pumped into the axon. B?
  40. biology - environmental

    How does the edge (shoreline) of a marsh/wetland affect the wetland? Would it be better for the wetland to have a round or broken shoreline? Are coves, peninsulas and islands important to have? How does the shape affect wave action and exposure to wind?
  41. biology

    The agricultural research facility during a research accidentally changed the DNA sequence of a wheat plant from GCCATGTT to GCGTACTT and this mutation resulted in a stronger plant variety. What kind of mutation did the plant undergo?
  42. biology

    The agricultural research facility during a research accidentally changed the DNA sequence of a wheat plant from GCCATGTT to GCGTACTT and this mutation resulted in a stronger plant variety. What kind of mutation did the plant undergo?
  43. bio

    I am doing the biology ap bacteria DNA transformation lab and I came up with a transformation efficiency of 150,000. I read somewhere that they should be between 2,000-8,000. is my answer way off? My group counted an average of 1529 colonies to begin with
  44. biology

    Identify the blood types arising from each of the progenitor cell types: a)Myeloid progenitor cells b)Lymphoid progenitor cells No one has answered this question yet.
  45. Biology

    Differentiating the affects of environment vs the affects of DNA and how they affect "who we are" is often quite difficult. Other than 'Twin Studies' do you have any suggestions of how we can study which one - environment or DNA affects each trait more?
  46. Biology lab - hypothesis?

    For each of the observations, list a possible question, hypothesis and prediction. 1. Observation: Chicken soup seems to cure a cold. Question: Hypothesis: Prediction:
  47. Biology

    Olga Oompah has red hair and marries Oliver Oompah who has blue hair. They have 32 children. What is the color of their children's hair? This has to do with the punnet squares!
  48. Biology

    The genetic code for an oak tree is (A) More similar to an ash tree than to a squirrel (B) more similar to a chipmunk than to a maple tree (C) more similar to a mosquito than to an elm tree
  49. Gr 11 Biology

    if you were a snoker, what lung volumes (tidal volume, expiratory reserve volume or vital capacity) would be most affected? i think the answer would be the expiratory reserve volume
  50. BIOLOGY

    What are some examples food web. What are some examples of food chains? Discuss the plants and animals that make up the food web immediately surrounding a school.
  51. Biology Pedigree --plz help!

    So the question was asking me about a pedigree what was the males genotype which was X^N^Y then it asked me what was its phenotype? this lesson is about hemophilia diseases. CAN I SAY THAT THE Phenotype is Hemophilia or hemophilia free?
  52. college biology

    if you have a father who is type A heterozygote blood and married to a woman who is type B heterozygote blood, find all the children's possible blood types and ratios.
  53. Biology

    Describe the biological interrelationships among the life forms in the area. I already pick an area but what does biological interrelationships?
  54. biology

    Is Protein a short term energy source or a long term energy source? please explain
  55. biology

    Why might it be worse to get an infection from someone in the hospital than from someone on a bus? is it because how bad the infection is, usually people that are in the hospital are in bad condition
  56. biology

    At what stages of meiosis 1 and 2 are the chromosomes unreplicated and replicated At what stages of meiosis 1 and 2 are the chromosomes diploid and haploid
  57. Biology

    A plant's cell wall is made of cellulose fibers. What is the purpose of a plant's cell wall?
  58. Biology

    can stomach acid dissolve a chewing gum? can stomach acid dissolve iron? pls someone help
  59. biology

    Is Starch a long-term energy source or short-term energy source? please explain!
  60. Biology

    You need to prepare 270ml of a 20% sucrose solution (w/v). Sucrose has a molecular formula of C12H22O11. How would you prepare this solution?
  61. Biology

    What can I write for an assignment that asks me to write about what ecology means to me? I don't know exactly what is meant by "means to you," as in the assignment.
  62. Biology

    The organelle where the protein altered in cystic fibrosis is recognized as being abnormal is? Is it endoplasmic reticulum, the Golgi apparatus, lysosome, or the ribosomes or nucleus? http://en.wikipedia.org/wiki/Cystic_fibrosis
  63. Biology

    what are the radiometric dates of: Homo sapiens, stone tools, sabre toothed cat, wolly mammoth, apes, whales, horses, dinosaursflowering plants, birds, earthworms, reptiles, spiders, sharks, amphibians, land plants, jawless fish, jellyfish bacteria and
  64. help with my science test 7th grade connection

    11. Several studies link cigarette smoke to health problems have resulted in the banning of smoking in many public places.this is an example of A.ways scientific theories become scientific laws. B.ways a scientists communicate results C.ways science
  65. Math

    Diegos class planning a field tripfor 25 students.They will go to aquarioum and then to science museum. Each ticket for science cost $2 more than each ticket to aquarium. Lunch for each student is $5 additional. Write and expression for total cost of
  66. Science

    Astrologers relate the location of stars and planets to events in human lives. Many years ago, people classified astrology as a science. Why do modern scientists consider astrology to be a pseudoscience A. Astrology does not involve the use of telescopes.
  67. human biology

    I need some information on the nephron and H+ ions. My book just has it in a diagram, but the diagram talks mostly about the K+ ion relationship. Can someone just give the gist of the H+ relationship with the nephron? thanks Since this is not my area of
  68. Biology/ms. sue

    ms. sue help =-(
  69. Biology

    How does diving bradycardia reflex help explain why we can survive after falling into cold water and being submerged for long periods of time? Give a physiological reason that explains the relationship between lung size and body size. From a physiological
  70. Biology

    Which of the following cranial nerve nuclei is a branchial motor nucleus and is, therefore, found in an intermediate position in the brainstem tegmentum? oculomotor nucleus abducens nucleus dorsal motor nucleus of vagus Edinger-Westphal nucleus nucleus
  71. Biology

    3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)
  72. AP Biology

    What are the four basic levels of ecological study, and what is the focus of inquiry at each of these levels? I don't know what it's asking to start with and can't find anything relevant online, in my textbook or in my study guide! Since it says levels, I
  73. BIOLOGY

    A high-powered microscope that produces an image from scattered secondary electrons is the a. immunofluorescence microscope b. bright-field light microscope. c. transmission electron microscope (TEM) d. scanning electron microscope (SEM). e. confocal
  74. Biology

    3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)
  75. biology

    Explain how respiration and the circulatory system work together when an individual is exercising. Does tissue need oxygen at a higher rate? Does tissue need to void CO2 at a higher rate? Does the heart pulse speed up? Does the breathing rate increase?
  76. Biology

    What will happen when deionized water is added to red blood cells and then left to sit for 15 minutes? Will the blood cells mix with the water immediately and make a paler solution or will they be more dense than the water and sink to the bottom?
  77. Biology

    For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)
  78. Biology

    3) For each of the following characteristics, will the migration of the protein speed up, slow down, or remain unchanged if you do not add SDS? a)increase molecular weight of protein b) increase concentration of acrylamide c)decrease charge on protein d)
  79. computer science

    write a program to select the classes that you are taking(Ex. Computer Science) .When the button is clicked, the program should print the names of the computer language studied. If no, check boxes have been selected, the sentence "No language studied
  80. science

    I'm in 5th grade and I'm doing a science project on if seawater can be desalted by freezing... I tested three cups of seawater, each with different times in the freezer.. I have my control which is the seawater at room temperature... What do I chart on my
  81. Science

    In the experiment water clock : what changes (independent variable) , how does it responds to the changes made(dependent variable), and what is being controlled (controlled variable). Pleas I really need this by today. And also my question for science fair
  82. English

    Could you please quickly check this sentence? Thank you very much. 1) The project is mainly centred on the cooperation among students. About twenty students taken from different second classes (aged 17) will participate in the project. 2) I really hope
  83. Biology

    Plz help me find these words for puzzle. the questions are related to bacteria. 1. Ability of pathogen to kill (8 letters) 2. Ability of an organism to cause disease (8 letters) 3. One of the conditions for bacterial growth (8 letters) 4. Cells with no
  84. biology (multiple choice!)

    The death by bubonic plague of about 1/3 of Europe's population during the fourteenth century is a good example of: A. Abiotic factors limiting population size B. A density dependent effect C. A time lag D. A density-independent effect E. Carrying capacity
  85. Biology Help Please!

    Bacterial Gene Transfer - Conjugation Please Clarify These Questions For Me! 1) Explain the purpose of the controls used in the mating experiment 2) It is necessary to make dilutions prior to plating in Week 1 in order to obtain single colonies. Why are
  86. AP Biology

    the metabolic function of fermentation is to: a. oxidize NADH to NAD+ so that glycolysis can continue b. reduce NADH to NAD+ so that more ATP can be produced by the electron transport chain c. produce lactate during aerobic exercise d. oxidize pyruvate in
  87. GED

    Is the English Writing test the most difficult GED test? I find Math easy. Am I required to memorize the Science and Social Studies? or will I be provided information and is the Science and Social Studies actually a reading test? Thank You in Advance.
  88. Science math

    Can no one help me? I posted a question earlier I don't need answer I need to understand what I did wrong my thinking is that if I have a 2:1 ratio And my total is 99 that if I divide by 3 then I can get the amounts 33x2 is 66, then 33x1 is 33 so it would
  89. Biology (please help!!)

    Explain the process that takes place in the stroma including and reactants going in nd the products produced from these processes in a. bright sunlight and in b. darkness. c. what happens over an extended period of darkness of many days? What I need to
  90. biology

    1. how do molecules of a polar compound differ from those of a nonpolar compound? 2. What happnens when ionic compounds are mixed with water? 3. what is capillarity? 4. Critical Thinking: Most automobiles have water-cooled engines. What must be true about
  91. math

    A total of 121 people came to the school science fair this year. This is 7 more than twice the number of people who came to last years science fair. How many people came last year?
  92. Math

    Valerie soent 32% study time on math and science. Math @ 3 hrs and Science at 5 hrs. How much time spent on studying subjects?
  93. biology

    The length of DNA HELIX occupied by one nucleotide pair is 3.4 angstroms. What is the length in angstroms of this unknown DNA fragment? How do you calculate Angstroms?
  94. Biology

    A consumer can also be considered a a. herbivore b. autotroph c. heterotroph d. primary producer I think the answer is either a or c, because a consumer could also be a herbivore, but I don't know if the question is asking for a different name for a
  95. biology

    I understand that a prokaryotic cell has ribosomes smaller than 70s. But what i don't understand is what 70s accutually means. Please could someone explain what 70s means to me? thank you
  96. Biology

    The gene for color blindness in humans is found on the X chromosome. A boy has a color-blind father. Will the boy be color blind? Explain.
  97. biology( heart)

    Is the right heart right lung bigger than the left heart and left lung? Could you please post legitmate links that will prove this or if not some sort of explanation. Thank You
  98. Biology

    How can NaHCO3 function as both the acidic component of the NaHCO3/Na2CO3 buffer system and as the basic compnent of the H2CO3/NaHCO3 buffer system?
  99. Biology-Genes

    red fish-recessive green fish-dominant -Can two red fish mate and have green offspring? Vice Versa?
  100. science

    Hi...I am having trouble on one last science question. Which statement supports the fact that Earth rotates about its axis from West to East? a. only one face of the moon is visible from earth b. the moon's phases change every day over the course of 29