All living things are composed of the four categories of biomolecules you see here. These molecules are also called macromolecules because they are very large. The function of biomolecules is determined by its structure. Some are building blocks, some supply

12,230 results
  1. science

    All biomolecules are made up of the elements carbon, hydrogen, nitrogen, oxygen, and sulfur. carbon, hydrogen, nitrogen, and oxygen. carbon, hydrogen, oxygen, and sulfur. carbon, hydrogen, and oxygen.*** Nucleic acids are the building blocks of proteins.

  2. Biology

    1. Which elements are most abundant in living organisms? A. hydrogen, carbon, calcium, potassium, oxygen, and phosphorus B. oxygen, calcium, phosphorus, sodium, hydrogen, and carbon C. carbon, potassium, iron, magnesium, hydrogen, and nitrogen D. oxygen,

  3. Chemistry

    How many molecules are in 2.10 mol CO2? A. 2.53 x 10^24 molecules B. 3.79 x 10^24 molecules C. 3.49 x 10^24 molecules D. 1.26 x 10^24 molecules*** I think it is D, but can someone check my work? Amount of mols x Avogadro's number (2.10 x 6.02 x 10^23) 1.26

  4. science

    which of the following distinguishes living things from nonliving things? A. living things are made up of cells; nonliving things are not** B. living things are made up of atoms; nonliving things are not C. living things are made up of elements; nonliving

  5. Biology

    Can someone check my answers please? 1. Which of the following is not a characteristic of life? A. Maintains homeostasis B. Composed of cells C. Composed of atoms*** D. Carries out metabolism 2. Which of the following represents a correct sequence of

  6. science

    Which of the following statements is true about fungi? (1 point) A. All fungi are pathogens. B. All fungi are microscopic C. All fungi are living organisms D. All fungi have negative impacts on living things. Plz no rude coments. :-) thank you!

  7. science

    What would be needed in order to properly diagram an ecosystem? A. many different types of organisms in the same place B. a group of organisms in the same place at the same time C. rain falling into a lake during the night D. living things shown

  8. biology

    All living things are composed of the four categories of biomolecules you see here. These molecules are also called macromolecules because they are very large. The function of biomolecules is determined by its structure. Some are building blocks, some

  9. Science

    True or False 1) All living things must eat other living things for food. 2) Plants can make their own food. 3) Plants don't need oxygen, only carbon dioxide. 4) Animals eat plants or other animals that eat plants. 5) Many living things need oxygen to

  10. science

    which biomolecules are found in all organisms?

  11. Science

    Check my answers please? Imagine that you remove all the atoms from a chair. What remains? 1. nothing 2. a pile of dust I choose 1. Which of the following is not made of atoms? 1. heat 2. a solid 3. a gas I choose 1. What about matter is true? 1. atoms are

  12. Biology- check my answer (diff one)

    Which of the following are true concerning living things? Check all that apply. A)They contain a vital force absent in nonliving things. B)They are composed of molecules that contain carbon-carbon bonds. C)They undergo chemical reactions to use energy they

  13. Science (HELP ASAP!!)

    1. (Blank) are the basic units of structure and function in living things. 2. A (Blank) is a group of similar cells that perform a specific function in an organism. 3. (Blank) are nerve cells that carry response information to muscles and organs. 4. Carbon

  14. Chemistry

    How many molecules of lithium carbonate are there in 8.62 g of the compound? a) 74 molecules b) 647 molecules c) 0.12 molecules d) 7.02x10^22 molecules e) 1.42x10^-23 molecules

  15. Biology

    Which biomolecules are found in all organisms?

  16. Biology

    Which describes the complex carbohydrate cellulose ? A) It’s composed of a complex arrangement of glucose molecules B) it’s composed of a complex arrangement of many kinds of macromolecules C) it’s composed of a complex arrangement of chitin

  17. Chemistry of Life

    Which statement is true about water molecules? The oxygen atom has a negative charge. The hydrogen atoms do not share electrons. Water molecules move randomly around each other. Water molecules cannot dissolve many substances. Question 2. How does water

  18. biology 2 ap

    All living organisms share all of the following features in common except A. carry out metabolism B. transfer energy with ATP C. encode hereditary information in DNA D. are composed of one or more cells E. containing organelles

  19. Science

    Which of the following distinguishes living things from nonliving things. A. living things are made up of cells nonliving things are not B. living things are made up of atoms nonliving things are not C. living things are made up of elements nonliving

  20. Science

    Which of the following explains why water is limited resource 1:water is present on earth in a fixed amount that does not change 2:water is degrading slowly with time 3:only water not present in oceans is available for living things to use 4:once it ends

  21. Science

    What are the 5 characteristics of all living things? What do all living things need?

  22. Chemistry

    Thank you for your help. I did want to clarify why you are only calculating the Molar Mass for H2 and not the molar mass for H2O (or even H2O2). I'm not sure why you did this. Please clarify. See below: The following reaction represents the decomposition

  23. Chemistry

    Which statement about compounds and molecules is correct? 1. All molecules are compounds. 2. All compounds are molecules. 3. Compounds are composed of molecules bonded together. 4. Molecules are composed of compounds bonded together.

  24. Biology B help

    Linnaean classification involves A. only large, general categories of organisms. B. only small, specific categories of organisms. C. both large and small categories of organisms. D. no categories of organisms.

  25. science

    Vanillin is the key component of vanilla extract that gives it its unique flavor. Assuming that vanilla extract is composed entirely of vanillin molecules, if the density of vanilla extract is 0.8 grams per mL, how many molecules of vanillin are there in 1

  26. Science URGENT

    Chemical energy is stored in the bonds of 1. oxygen molecules 2.water molecules 3. glucose molecules 4.carbon dioxide molecules

  27. Chemistry

    Determine the number of molecules in 8.62 x 10^-3 g of dinitrogen pentoxide. a) 4.80 x 10^19 molecules b) 4.80 x 10^25 molecules c) 4.80 x 10^23 molecules d) 0.931 molecules

  28. scientist

    What is biomass energy? the chemical energy stored in living things the electromagnetic energy stored in living things the nuclear energy stored in living things the thermal energy stored in living things Not sure what this one could be

  29. Biology

    |Question| Living organisms are composed of millions of organic compounds, each having a unique structure. What element is responsible for this huge diversity of molecules? Describe the diversity of structures that can be formed and the properties of this

  30. I.3 Lesson Check~Climates and Ecosystems

    __________ is greatest near the Equator, where air usually rises. * 1 point Air pressure Heat Precipitation Dry air 4. An ecosystem is a network of __________ that depend on one another and their environment for survival. * 1 point natural features and

  31. Science

    Three statements that define all living things in terms of cells That's not even a complete sentence or question. I searched Google under the key words "living cells define" to get these possible sources: http://www.answers.com/topic/cell

  32. Physics

    1) Is it accurate to describe the physical universe as composed of only matter and energy? 2) How is it possible that only 92 elements are found in the natural world but there are millions of different types of molecules? I really have no clue about these

  33. chemistry

    Calculate the mass in g of each of the following. a. 2.3×10^22 H2O molecules b. 6.16×10^20 SO3 molecules c. 5.0×1025 O3 molecules d. 9.82×1019 CCl2F2 molecules

  34. Science

    here's my question, Why do living things need food, water, and the ability to get rid of waste? A. Living things need food, water and the ability to get rid of waste to maintain a balance within their habitat *** B. Living things need food, water, and the

  35. Biology

    Describe the characteristics of living things and provide examples to illustrate your description. I have all my characteristics but I need one example. Here is my characteristic: Living things grow

  36. Science

    This is for 7th grade science and I think this was good tell me if I'm wrong Like climate, change to an environment will affect the ones living in it. Plants that are moribund in an area where they grow changes in the environment will help the plants

  37. biology

    What are the characteristics of LIVING THINGS?

  38. biogloy

    What does it take to be a living organism? Living things share 8 characteristics that are listed in Chapter 1 of your textbook on page 19. Think of an organism or cell in which all 8 characteristics are not obvious. For example, coral looks like it does

  39. science

    how turtle uses other things living or nonliving Turtles use living things, such as leaves for shelter. They eat insects and leaves. Turtles use nonliving things such as mud and water to drink.

  40. science

    Earth’s atmosphere makes the planet suitable for living things by doing which of the following? Select all that Apply A Protects the Earth from meteorites. B Keeps us from floating off into space C Increases the amount of gravity on Earth D Allows for

  41. bio

    This element can form a wide variety of substances, including long chains. The different substances it forms are central to the molecules found in living things. What element is this? oxygen nitrogen carbon hydrogen I think it's C.

  42. budget

    How would Jenny best allocate her income for the month What categories and in what amounts should Jenny allocate her funds to reflect a balanced monthly budget? Include the main categories as well as examples of other categories

  43. Chemistry

    a mothball composed of naphthalene has a mas of 1.06g. how many napthalene molecules does it contain

  44. chemistry 101

    calculate the molecules of oxygen required to react with 28.4g of sulfur in the following reaction? a)1.60 * 10 **24 molecules b)3.56 * 10**23 molecules c)2.67 * 10**23 molecules d)5.33 * 10**23 molecules e)8.00 * 10**23 molecules

  45. Earth science

    Which of the following statements best defines rocks? Combinations of minerals and or once living things combinations of metals and minerals combinations of once living things only or combinations of minerals only

  46. Honors Biology

    Can someone check my work please? We had to fill in the blanks of a short paragraph with the correct keywords, but all these acronyms (I think that's what they're called ;P) confuse me. My answers will be in parentheses. " The Calvin Cycle begins when one

  47. Biology

    If living things are composed of cells, this means that they demonstrate ______________. A: Cellular Organization

  48. Biology

    What does it take to be a living organism? Living things share 8 characteristics that are listed in Chapter 1 of your textbook on page 19. Think of an organism or cell in which all 8 characteristics are not obvious. For example, coral looks like it does

  49. chemistry

    Mass of this sample = 3.2 g 1. Iron is... a) An element composed of atoms b) An element composed of diatomic molecules c) An ionic compound d) Made from more than one type of atom 2. How many moles of iron are in the nail?

  50. English

    I am writing an essay on things from the natural world and I need to think of categories for the things in order to write paragraphs. The sun, moon, sea, and sea shore are all things from the natural world. What one smaller category do they fit in?

  51. 10th grade

    I am writing an essay on things from the natural world and I need to think of categories for the things in order to write paragraphs. The sun, moon, sea, and sea shore are all things from the natural world. What one smaller category do they fit in?

  52. Biology

    Please help me with this! What is the definition of a hydrocarbon? A) electrons shared between two different atoms B) a single line bonding carbon and hydrogen C) large molecules that are produced by living things D) a large chain of carbons and hydrogens

  53. Science

    A_______________ is a group of similar cells that perform a specific function in and organism ___________ are nerves cells that carry response information to muscles and organs Carbon dioxide and_________ are outputs of cellular respiration

  54. biology

    increase in the amount of living material and formation of new structures in an organism: a characteristic of all living things

  55. science

    a community and all of the nonliving things that affect it Are you talking about an ecosystem? However, this also includes living things. I hope this helps. Thanks for asking.

  56. biology

    what are the important differences between living and non-living things?

  57. Chemistry

    I can't seem to get this problem, i really don't understand it Chemical reactions can also be coupled. The decreasing free energy of a spontaneous change can be stored in substance whose formation would not ordinarily be spontaneous. Living organisms have

  58. glucose question

    Assume that the organism is living areobically and that one molecule of glucose oxidized completely to 6 CO2 generates 30 molecules of ATP, how many glucose molecules must be oxidized to supply the energy for the synthesis of all these different nucleic

  59. Statistics

    Chi-square tests are nonparametric tests that examine nominal categories as opposed to numerical values. Consider a situation in which you may want to transform numerical scores into categories. Provide a specific example of a situation in which categories

  60. science

    What does it mean to say that a variable’s categories may be collapsed? What should the researcher keep in mind when collapsing categories for analysis?

  61. Word Problem

    Suppose a frequency table consists of six categories. If all six categories contain the same number of observations, the interior angles of each section of the associated pie chart would be

  62. science

    I have checked these sites out and they don't answer the question, what molecules is lipitor composed of. I just need to know its its a carbohydrate, protein, amino acid. One site said something about statin but im not sure if that is a molecule. someone

  63. Need help pleas (science)

    . Why are energy transformation important for an ecosystem's stability? . What is the role of photosynthesis I'm making energy "usable" for life? . What is the link between decomposition and photosynthesis? . What is the connection of energy flow through

  64. biology: the study of life

    2. what is meant by the statement "living things do not exist in isolation"? TRUE/FALSE 3.people study biology only if they are planning to become biologists. 4. by studying biology you can better appreciate the great diversity of species on earth and the

  65. AP BIO

    2. Suppose the DNA molecule were composed of six monomers. In addition to the monomers A, T, C and G, two other monomers, O and P, were present. Furthermore, O and P were known to pair only with each other. Which of following statements regarding this kind

  66. science

    why most living things must have air?

  67. yogi science

    HOW are all living things alike ?

  68. Science

    Living orgnaisms are composed of a special catagory of molecules called enzymes, what are the both molecules?

  69. science

    One of the five charateristics of living things is being able to reproduce. Do all living things have to have all charateristics? Mules are living things and most are sterile. (I have heard of a few cases where a mule has given birth.) What about women who

  70. biology

    1 – 2 sentences why each of the following unique properties of water is important to living things Water is the universal solvent: Water is less dense as a solid than as a liquid Water molecules are attracted to one another (cohesion) Water molecules are

  71. biology need help

    1 – 2 sentences why each of the following unique properties of water is important to living things Water is the universal solvent: Water is less dense as a solid than as a liquid Water molecules are attracted to one another (cohesion) Water molecules are

  72. science

    what are 10 (things (living and non-living things)that a barracuda need to live a healthy life?

  73. maths and science and geography

    I describe inorganic as non-living things and organic as the living things. so help me to difference it?

  74. Science question, only 1

    Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change. Water is degrading slowly with time. Only water not present in oceans is available for living things to use. Once it ends up

  75. Health

    An organelle is A. the smallest “living” structure in the body. B. a specialized body part composed of tissues. C. a structure in the cytoplasm. D. any complex living being, plant or animal. (c) is this correct

  76. biology

    Properties of life and recognizing living and nonliving things What does it take to be a living organism

  77. Science :(

    4. Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain 5. Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not

  78. Help

    4. Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain 5. Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not

  79. Science check my answers

    Which of the following is not needed to make a model of the water cycle? an energy source water a closed container a drain Which of the following explains why water is a limited resource? Water is present on Earth in a fixed amount that does not change.

  80. Science

    all of the living and non living things in an area make up the what?

  81. bio 111

    The interior of the phospholipid bilayers that make up all biological membranes is: Composed of cholesterol Composed of water Composed of fats Hydrophobic Hydrophillic

  82. Science

    Please Help with the last few questions on my Science Test. 11. Molecules naturally spread from areas of ______________ concentration to areas of ______________ concentration through a process called _____________. 1. high;low;diffusion

  83. Science

    which of the following distinguishes living things from nonliving things

  84. Science

    Science Please Help with the last few questions on my Science Test. 11. Molecules naturally spread from areas of ______________ concentration to areas of ______________ concentration through a process called _____________. 1. high;low;diffusion

  85. Science

    "Renewable energy can come also from living things that reproduce quickly, such as wood,..." Is wood a living thing? I don't understand why it says this in my text.

  86. Evolution

    I’ve been a staunch proponent of evolution since a very young age. I’ve never questioned the theory, which was in my heart a law. Proof was never essential, but lately… I seam so doubtful. Here are just a few things I have problem believing: 1. The

  87. 11th grade Biology

    Match the following.. 12. Moves in cycles from nonliving things to living things back to nonliving, etc. 13. Can be passed from one organism to another in a food chain. 14. Is constantly being lost from the biosphere. 15. Can be created by living

  88. Living Environment

    How one type of atom (carbon)can be the basis of so many types of biomolecules?

  89. Science

    . Why are energy transformation important for an ecosystem's stability? . What is the role of photosynthesis I'm making energy "usable" for life? . What is the link between decomposition and photosynthesis? . What is the connection of energy flow through

  90. Science

    . Why are energy transformation important for an ecosystem's stability? . What is the role of photosynthesis I'm making energy "usable" for life? . What is the link between decomposition and photosynthesis? . What is the connection of energy flow through

  91. science

    what should soil have to suit animals which live in soil?why are these things important?hence, infer which type of soil is most suitable for soil living-things ?

  92. science

    how do living things need each other? thank you for your help

  93. Biology

    When a teapot boils, we see a white cloud rising from the spout. The white cloud is composed of: A. water in the liquid phase B. water in the gaseous phase c. water molecules coming apart to from H+ and OH- ions D. H+ and OH- ions coming together to form

  94. Science/Biology

    A woman once had a beautiful rubber tree, but when her sister saw her watering it, she laughed and asked why she was watering an artificial plant. So she stopped watering the plant, and in a few months it died. Explain, using at least five characteristics

  95. biological science

    What are the characteristics of non-living things?

  96. Science

    Characteristics non-living things

  97. science

    what is the element of living things

  98. chemistry

    How many molecules of NH3 could be generated from 64 molecules of N2 and 210 molecules of H2? How many molecules of N2 and H2 would be left over after the reaction?

  99. Chemistry

    What are compunds that are composed of molecules called?

  100. chemistry

    A 0.821 sample of a substance composed of diatomic molecules has a mass of 131.3g. Identify this molecule. May I have your expert help with this question? Thank you.

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