science please help

Popular questions
  1. Science please help

    1. What is an example of a stable system?

    asked by banna on May 3, 2017
  2. Science please help

    It is important that you maintain a healthy weight both for your overall health and so that your respiratory system can A. deliver oxygen more adequately B. pump blood more forcefully from the heart C. keep capillaries constricted D allow for smaller

    asked by Princess on February 19, 2015
  3. science Please Help

    During the process of photosynthesis, plants convert carbon dioxide and water into glucose. Covalent bonds hold the glucose molecules together. The breaking of the covalent bonds during digestion releases energy. the type of energy released is A.nuclear

    asked by HELP MEEEEE on December 4, 2014
  4. science Please Help

    1. A positively charged test object is moving toward the positive source charge in an electric field. What happens next??? A. its potential energy decreases. B. Its potential energy increases. C. Its potential energy stays the same. D. Its potential energy

    asked by HELP MEEEEE on December 4, 2014
  5. SCIENCE PLEASE HELP

    •What are earthquakes? •Where do they occur most often? Why? •How likely is it that your area will experience an earthquake? •What are the types of seismic waves? Describe/explain each of them. •What instrument do seismologists use to

    asked by FluttershyK22 on April 28, 2016
  6. Science Please Help

    Which of the following is a testable hypothesis? A. Altered temperature may affect gas production, which measures fermentation rate. B. Does temperature affect fermentation? C. Temperature decreases will affect gas production and fermentation much of the

    asked by Anonymous on December 2, 2014
  7. Science please help

    Most Female frogs lay their eggs in water. male frogs release their sperm into the water to fertilize the eggs, this is an example of? A) internal fertilization B) external fertilization C) metamorphosis *** D) Alternation of generation Male bowerbirds

    asked by Kats on October 30, 2017
  8. Science please help

    12. Measure the temperature of two unknown samples with your thermometer 13. Record both temperatures using the scale on the straw. please help ive been stuck for about 1 hour and a half

    asked by banna on April 29, 2017
  9. Science please help

    Which of the following types of pathogens can only reproduce itself if it takes over host cells? A fungi B bacteria C virus *** D protozoa am i right?

    asked by Ann on February 23, 2015
  10. Science please help

    i am sorry to bother you Ms. Sue but i need to present your proposal of a device that minimizes heat transfer. can you please give a list of insulators

    asked by banna on April 30, 2017
  11. Science Please Help

    What are the similarities and differences of valleys, canyons, plains, and volcanoes?

    asked by Clawdeen on November 8, 2017
  12. Science Please Help

    Human activities, like burning fossil fuels and deforestation, have greatly contributed to global warming. In this assignment, you will go on a trip around the world to explore the effects of climate change. Choose one destination that is represented by a

    asked by Bradley on February 7, 2016
  13. Science Please Help

    Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

    asked by Naomi on January 30, 2017
  14. Science Please Help

    Which of the following statements are true A-Biodiversity provides additional resources that raise the carrying capacity of an ecosystem** B-Biodiversity increases and ecosystems ability to withstand changes C-Biodiversity makes an ecosystem more difficult

    asked by loin on January 27, 2017
  15. Science PLEASE HELP

    Could a mixture be made up of only elements and no compounds? Explain why or why not.

    asked by Katie on September 27, 2015
  16. Science Please help

    Some of the oldest rocks ever found have been estimated to be about 3.5 billion years old. Is it likely that these rocks were present when Earth was first formed? No, this rock is probably just a sedimentary rock that was formed by much younger igneous

    asked by Monkey55 on December 9, 2014
  17. SCIENCE Please help

    A cloud forms around 45° south latitude and is carried through the atmosphere on the Westerlies. As the water molecules in the cloud move through the atmosphere, which step in the water cycle is most likely to happen next? The molecules cool and

    asked by Oscar on January 25, 2016
  18. Science Please Help

    What are the similarities of the formation, appearance, and location of valleys, canyons, plains, and volcanoes?

    asked by Clawdeen on November 9, 2017
  19. Science PLEASE HELP

    Explain how gravitational, electrical and magnetic force act on a maglev train?

    asked by Ariana on December 6, 2016
  20. Science please help

    Some of the water flows over the dam and is converted to energy, some water evaporates into the air. What spheres does the water, or hydrosphere interact with this example? a. Geosphere and atmosphere B. Atmosphere and biosphere C. Crysophere and

    asked by Steph on January 12, 2015
  21. science please help

    after the DNA strands are separated, which of the following is the next step of DNA replication in the S phase of the cell cycle? A) Action of helicase B) formation of RNA primer C) Breaking of hydrogen bonds D) joining of nucleotides i think it is either

    asked by john on May 13, 2015
  22. science please help

    1.a ball with a mass 2kg rests on an incline with an angle of 10 degrees. The ball is released to roll down the incline plane neglecting all friction: Determine the following: A.the loss in potential energy after it has rolled 12m. B.the velocity after it

    asked by Buhle on April 6, 2015
  23. science please help

    Sources and uses for the following: Radio waves Microwaves Infrared Waves Visible Light Waves Ultraviolet Waves X-Rays Gamma rays

    asked by Unknown on October 30, 2013
  24. science please help

    in evolutionary terms, RNA is thought to have preceded proteins and DNA. Which of the following observations provides the most convincing support for hypothesis? a) there are more types of RNA than there are DNA b) RNA contains combined catalytic,

    asked by john on May 13, 2015
  25. Science please help

    Draw Bohr diagrams of a magnesium atom bonding with fluorine atoms. Draw atoms then electron transfer and finally the ions that form. What type of bonding occurs? Draw Bohr diagrams of 2 hyrdogen atoms bonding with an oxygen atom by sharing electrons to

    asked by Anonymous on March 3, 2014
  26. science please help

    a person touches a hot stove with her hand and quickly pulls it away in pain. Identify which three organs systems the body utilized in this reaction and explain the role each organ system played.

    asked by Karan on October 1, 2011
  27. science please help

    after the dna strands are separated, which of the following is the next step of DNA replication in the S phase of the cell cycle? Action of helicase formantion of RNa primer breaking go hydrogen bonds joining of nucleotides i think either B or D

    asked by john on May 13, 2015
  28. science please help

    Help please. According to the following diagram, approximately how much time goes by between phase H and phase B? explain your answer.

    asked by Ally on December 7, 2015
  29. science please help

    So I have to do this project on simple machines. The invention we need to make should have at least 2 simple machines on it. We also have to draw it on posterboard and write a paragraph about it. One more thing is that it must make a person's life easier

    asked by Anonymous on February 21, 2013
  30. Science Please Help

    Which of the following is a testable hypothesis? A. Altered temperature may affect gas production, which measures fermentation rate. B. Does temperature affect fermentation? C. Temperature decreases will affect gas production and fermentation much of the

    asked by Anonymous on December 2, 2014
  31. science please help

    could you please give me an example of the following(types of friction) : -static -sliding And also: -friction -buoyant force -air resistance Thank You!

    asked by dina on March 31, 2010
  32. Science please help

    what do we mean when we say that atoms bond? What particles in an atom are responsible for bonding? Table sugar or sucrose is a compound that has the chemical formula C12 H22 and O11 would another chemical made of the same elements still be considered to

    asked by Anonymous on February 28, 2014
  33. Science please help

    I am doing a crossword puzzle that has statements that you write their answers in the right column. I have two that I can't get. Heart of a scientific investigation what I have so far: --e-t-- standard of comparison for checking the results of an

    asked by Bianca on September 10, 2015
  34. science please help

    Which of the following factors is the most likely explanation for an energy deficit that results in exercise-induced exhaustion? a. inefficient protein production b. insufficient mitochondrial function c. impaired urea elimination d. absence of oxygen

    asked by john on May 13, 2015
  35. science please help

    Also why don't we accept the Metric System as it in now used in other countries?

    asked by Libby on September 30, 2013
  36. Science Please Help

    Explain how heat is transferred between a hot and a cold object by conduction — for example, a warm foot on a cold floor.

    asked by Cassie on April 10, 2013
  37. Science PLEASE HELP

    How does Exothermic and Endothermic reactions affect the rate of a reaction? Please help. I need something that will be easy for me to understand and adopt into my own words. Thank You :)

    asked by Anonymous on November 23, 2014
  38. science please help

    When you are swimming underwater, what does it sound like when someone talks from the surface? Why does this happen? My answer- You can slightly make-out what they are saying.This happens because sound travels faster in water than in air.

    asked by Anonymous on October 27, 2013
  39. SCIENCE PLEASE HELP

    There are 3.29g of iodine -126 remaining in a smple originally containing 26.3 g of Iodine - 126 the half life of Iodine - 126 is 13 days. How old is the sample? At study hall test is after lunch and cant figure out htese 2 on my review packet

    asked by sam on February 8, 2008
  40. Science please help

    What are some ways (at least two) that cells can increase their (Unicellular and multi-cellular organisms) surface area to volume ratio without splitting into multiple cells? One way that cells can increase their surface area to volume ratio without

    asked by Sarah on March 22, 2017
  41. Science PLEASE HELP

    what functions do individual cells perform that are similar to the functions of our bodies?

    asked by Joud on September 5, 2016
  42. Science Please Help

    an illness caused by fungus

    asked by Anonymous on December 17, 2014
  43. Science please help

    What form is the energy turned into by a mitochondria? I need help with this question. thanks god bless

    asked by Karen on March 21, 2009
  44. science please help

    Which characteristic MOST helps holly trees to reproduce? A.Green leaves with a really waxy covering. B.Red berries with a beautiful round shape. C.Really Spiked leaves that have super sharp edges. D.A wonderful bark-covered trunk with many many branches.

    asked by Hot stuff on April 18, 2007