science

Most popular questions
  1. science

    the current atomic model would be revised if 1)better microscopes were being used to study its structure. 2)better microscopes are invented in the future. 3)new information about an atoms structure is discovered.*** 4) a new element is discovered in the

    asked by alainaforysthe on October 9, 2017
  2. Science

    1-Which of the following is not a function of the circulatory system? D-fights infection 2-Which of the following explains why the heart is organized so that it pumps blood to two different locations? D-to provide a way for blood to pick up nutrients at

    asked by Rodco on March 20, 2014
  3. Science

    A dog is trained to sit and shake hands. These traits are most likely A. Inherited B. Not inheited C. Not aquried D. Innate Is the answer B?

    asked by Anonymous on October 15, 2014
  4. Science

    what the difference between the structures of simple and complex

    asked by Alex on September 8, 2013
  5. Science

    What do bone marrow and epidermis have in common. A.they are both sites of new cell information B.they both contain structures that assist the body in cooling down if overheating occurs. C.they both contain or are associated with sensory neorons D.they are

    asked by Anonymous on December 15, 2016
  6. Science

    1) Which of the following is true about photosynthesis? A. It is an exothermic reaction B.It is a endothermic reaction ***** C.It produces carbon dioxide D. It occurs in animals 2) Atomic Theory is A.Subject to change if new information is discovered B.A

    asked by noname on November 11, 2015
  7. Science

    1.)Check My Answers, please? Which of the following planets is considered a rocky, or terrestrial, planet? A.)Venus **** B.)Neptune C.)Saturn D.)Uranus 2.)Which of the following statements about the beginning of the solar system is true? A.)The planets

    asked by YRN DJ on January 20, 2016
  8. Science

    Hormones and Homeostasis 1) The human endocrine system is made up of which of the following structures? :Vessels. :Receptors. :Glands.*** :Chambers. 2. Which of the following best describes the function of the endocrine system? :It secretes chemical

    asked by TheLOUDEST_0430 on February 27, 2015
  9. science

    1. The skeletal system is created to ____________ internal organs. A) protect

    asked by Anonymous on January 6, 2016
  10. Science

    1. How does groundwater cause erosion and deposition? a. When acidic water soaks into the ground, water dissolves limestone, resulting in the formation of caves. *** b. When a river overflows, it moves downhill, resulting in the formation of caves. c. When

    asked by Hannah on March 3, 2014
  11. Science

    A student mixed two clear liquids together in a beaker and a solid precipitate formed. His data is shown in the table below. Liquid reactant A = 10 g Liquid reactant B = 17 g Beaker + solid product= 32 g What is the mass of the beaker? A. 5 g B. 10 g C. 15

    asked by Callie on November 6, 2014
  12. science

    The modern atomic model includes electrons orbiting the nucleus. Which of the following parts of Dalton's atomic model was disproved by the discovery of the electron? - Atoms are tiny particles. - Atoms cannot be divided into smaller parts . - Atoms have

    asked by julia on September 23, 2015
  13. Science

    The geologic time scale originally ordered Earth's rocks by: A. absolute age B. relative age*** C. composition D. decades and centuries Where did scientists originally get their information to develop the geologic time scale? A. They collected and studied

    asked by Anonymous on November 12, 2015
  14. Science

    Studies conducted in England during the Industrial Revolution have shown that children born to poor families were, on average, shorter than those born to wealthier parents. The most likely explanation for this difference in height is a difference in

    asked by Anonymous on March 24, 2017
  15. Science

    Can someone please check my answers? I would greatly appreciate it. Thanks! 1. Which of the following inner planets has virtually no atmosphere? a. Mercury*** b. Venus c. Mars d. Earth 2. Which of the following statements about the inner planets is true?

    asked by Blair on February 18, 2016
  16. Science

    1. granite lasts a long time when it is used for building in areas where

    asked by Help12 on March 3, 2017
  17. Science

    Which of the following sets of words can be used to describe the outputs of photosynthesis? water, glucose, light energy carbon dioxide, glucose, chemical energy oxygen, glucose, chemical energy glucose, oxygen, light energy Which of the following is true

    asked by Anonymous on February 6, 2014
  18. Science

    1.) when might preserved remains of an entire organism form? A.) when sediment buries the hard part of an organism B.) when an event such as a quick burial or freezing preserves an entire organism ******* C.) when minerals replace parts of an organism D.)

    asked by Zach on February 29, 2016
  19. Science

    How does DNA determine a trait such as eye color? A. DNA codes for proteins that determine eye color. B. DNA code for mRNA that detemines eye color. C. DNA interacts with proteins to control eye color. D. DNA contains pigments which make up eye color. Is

    asked by Anonymous on October 8, 2014
  20. science

    A student mixed two clear liquids together in a beaker and a solid precipitate formed. His data is shown in the table below. Liquid reactant A = 10 g Liquid reactant B = 17 g Beaker + solid product= 32 g What is the mass of the beaker? A. 5 g B. 10 g C. 15

    asked by Oscar on March 30, 2015
  21. Science

    What would happen to an object if the force of gravity on earth was decreased by half A. It’s mass would decrease B. It’s weight would decrease**** C. It’s density would decrease D. It’s volume would decrease

    asked by A person on December 11, 2017
  22. Science

    1. How Ian an areas topography determined? A. By using an areas longitude and latitude B. By using an areas scale C. By using an areas elevation, relief, and landforms * D. By using an areas elevation, longitude and latitude I really need to check my

    asked by Malie on May 19, 2017
  23. science

    check answers 1. A box of cleaning supplies weighs 15n.if the box is lifted a distance of 0.60m,how much work is done? A. 0.040 j B.9 j C.14 j (I PICK THIS) D.25 j 2.to chop wood you apply 50.0n of force to an ax. The ax applies 600.0n of force to the

    asked by Matt on January 16, 2014
  24. science

    1) What conclusions can be drawn about the relationship between the arrangement of elements on the periodic table and the patterns observed in their properties? :Properties of elements are related to atomic numbers.*** :Properties of elements are related

    asked by Oscar on March 9, 2015
  25. science

    What do the bone marrow and the epidermis have in commen

    asked by gabriella on April 4, 2017
  26. Science

    Which of the following describes how matter moves between producers, consumers, and decomposers in an ecosystem? one-way flow from producers to consumers to decomposers one-way flow from decomposers to consumers to producer cyclic flow froms producers to

    asked by Anonymous on February 11, 2014
  27. Science

    Which of the following sets of terms could be used in a description of the peripheral nervous system? 1)motor neurons 2)brain and spinal cord 3)motor neurons 4)sensory neurons and spinal cord I think #1. Can you check? Thanks.

    asked by Jamie on December 6, 2017
  28. Science

    1. How do scientists classify small objects in the solar system? by size by shape by size, shape, and temperature by size, shape, and composition** 2.Which of the following categories of small bodies in the solar system does Ceres belong to? dwarf

    asked by lifeisgreat on May 11, 2016
  29. Science

    1. Which of the following is true about mixtures? (1 point) Mixtures consist of two or more substances chemically combined. Mixtures cannot be separated by physical means. Mixtures consist of only one kind of atom. ***Mixtures have two or more substances

    asked by TTR+S<3 on January 29, 2014
  30. Science

    1.)Why is Earth’s temperature just right for life? (1 point) A.)Earth’s core is hot enough to heat Earth’s surface. B.)Earth’s magnetic field creates suitable temperatures on Earth’s surface. C.)Earth’s crust is warmed by heat from the sun.

    asked by YRN DJ on December 7, 2015
  31. science

    which of earths spheres contains most of is mass ? a) atmosphere b) hydrosphere c) geosphere d) biosphere

    asked by victoria on November 10, 2013
  32. science

    Which combination of sex chromosomes results in a male human being? 1 XX 2 YY 3 XY 4 either XX or YY is it a?

    asked by Devyn on October 31, 2017
  33. science

    1.   Which statement is true about the following molecule?  (1 point)The molecule is composed of four atoms.The molecule contains oxygen atoms.The molecule is water.The molecule represents an element. 2.   A(n) _____________ is made up of two or more

    asked by cIATA on February 27, 2014
  34. Science

    Can someone please check my answers and if they are wrong can you help me fix them? Thank so much!! 1. Which of the following determines the strength of the force of gravity between two objects? Check all that apply. (2 points) the speeds of the objects

    asked by Melissa on January 24, 2014
  35. Science

    #1. Kilometers per hour describes the speed of an object. ture false **** #2. Which of the following reference points would allow you to observe the speed of a car that you are traveling in? a) an airplane flying across the sky b) a car traveling next to

    asked by Mindy on February 27, 2014
  36. Science

    Name the components of the respiratory system in the order incoming air would encounter then during breathing.

    asked by Anonymous on October 29, 2015
  37. Science

    1. how do scientists classify stars ? (1point ) A. by size , distance , and color b. by size , distance, and brightness c. by color , brightness, and distance d. by size , brightness, and temperature

    asked by Shalee on October 21, 2015
  38. Science

    1. The streams and smaller rivers that feed into a main river are its A. watersheds B. tributaries** C. divides D. reservoirs 2. How are seamounts like the Rockies? A. Both are forms of mountains** B. Both are made of the same kind of rock C. Both are

    asked by McKayla on March 9, 2016
  39. science

    Which of the following is true about the electric charges on the objects below?

    asked by HEY:)) on April 20, 2017
  40. science

    An advantage of using an electromagnet, shown on the crane in the image below, instead of a regular magnet to move cars in a junkyard is that an electromagnet can easily be turned on and off.

    asked by new moon on May 2, 2018
  41. science

    1.)a basketball momentarily changes shapes as it bounces off the floor. this is due to balanced forces acting on the ball. True (answer) false 2.) a ball slowing down as it roles across the carpet is an example of what ? (1 point) a.)balanced force

    asked by Hannah Marie on October 8, 2014
  42. science

    1. How is the equator similar to the prime meridian? (1 point) Both the equator and prime meridian are lines that divide Earth into the Northern and Southern hemispheres. Both the equator and the prime meridian are imaginary base lines from which locations

    asked by TTR+S<3 on May 15, 2014
  43. Science

    Which of the following is true about the magnetic field diagram below. Its shows 3 Arrows on top pointing to B A B 3 Arrows on bottom pointing to B A A is the south pole and B is the north pole B A is the north pole and B is the south pole C A and B are

    asked by BUBBLES on February 19, 2015
  44. Science

    Which of the following best explains why it is necessary for the body to eliminate waste?

    asked by Caitie Cat on October 17, 2014
  45. Science

    How do microorganisms affect the quality of soil? A. By breaking down the remains of dead organisms B. By creating tunnels C. By absorbing water D. By increasing mechanical weathering

    asked by brookieluvs on November 9, 2015
  46. Science

    Your are studying an evergreen tree that produces cones. The tree is an? -Angiosperm -Gymnosperm -Gametophyte -Monocot

    asked by Red- Please Help! on April 10, 2014
  47. Science

    1) Which of the following is a chemical change? (1 point) Boiling of water Melting a cube of ice Dissolving 10 grams of salt in water Splitting water into hydrogen and oxygen*** 2) What is the mass of water that results from combining 2.0g of hydrogen with

    asked by Skylar on January 28, 2015
  48. science

    Which of the following would be true for the charged particles below ?

    asked by kayli on October 15, 2015
  49. Science

    Why didn't the outer planets lose the lighter gases in their atmospheres? I really need help if you could explain this to me. I'm begging you.

    asked by April - Science Help on February 26, 2015
  50. Science

    Which of the following electromagnetic waves is not used for communication?

    asked by Claire on November 23, 2014
  51. Science

    Which of the following explains why a bone in a bird’s wing is homologous to a bone in a lizard’s front leg? a.The bones in the two species provide for the same type of motion. b.The bones in the two species are both vestigial structures. c.The two

    asked by Anonymous on November 10, 2013
  52. Science

    The diver has the least gravitational potential energy at position A-1 B-2 C-3 D-4

    asked by Anonymous on February 14, 2018
  53. Science

    The Periodic Table 1) What conclusions can be drawn about the relationship between the arrangement of elements on the periodic table and the patterns observed in their properties? :Properties of elements are related to atomic numbers.*** :Properties of

    asked by TheLOUDEST_0430 on March 9, 2015
  54. Science

    How do layers B and D compare in age? If rock layers between B and D have eroded away, what is the boundary between B and D called? My answer: Layer D is older than layer B. If rock layers between B and D have eroded away, the boundary between B and D are

    asked by rAnDoM on October 29, 2015
  55. Science

    True / False: If a 40 kg person is accelerating at 10 m/s^2,then the magnitude of the force acting on him or her is 400 N. 1.How much force is needed to make a 60 kg object accelerate at a rate or 2.0 m/s ^2? 2.What is the acceleration of a 30 kg objedct

    asked by Makayla<3 on January 27, 2015
  56. science

    1. The image above shows the Andes Mountains. Which of the following processes formed this feature? (1 point) (pic of Andes Mountains) Glaciers deposited sediment. Plates converged together to form the mountains. Plates pulled apart and released magma.

    asked by TTR+S<3 on April 24, 2014
  57. Science

    1.)The sporophyte generation produces spores that grow into a A.)Gametophyte B.)Gymnosperm C.)Angiosperm D.)Pupa 2.)Placental mammals develop A.)In leg an egg laid in water B.)In a pouch on the mother's body C.)Inside the mother's body D.)Inside an

    asked by Douglas on October 6, 2015
  58. science

    1. Which organisms are capable of converting gaseous nitrogen in the air into a form that other living organisms can use? (1 point) nitrogen-fixing bacteria denitrifying bacteria decomposers producers 2. Which step in the nitrogen cycle is accelerated at

    asked by TTR+S<3 on January 21, 2014
  59. Science

    suppose that a population of skunks lives on an isolated island is 500 skunks are present today and the birth rate is 65 per week and the death is 47 per week how many skunks to you predict will be on the island 105 days from now and what would a graph

    asked by K on December 22, 2013
  60. Science

    1. The line on the graph below represents an object that is: A: Moving at a constant speed B: Increasing its speed C: Decreasing it's speed D: Not moving at all 2. To determine the acceleration of an object moving in a straight line, you must calculate the

    asked by Reeces on February 23, 2017
  61. Science

    Lesson 4: Behavior Science 7 B Unit 2: Interdependent Relationships in Ecosystems 1. Which type of behavior is illustrated in the following series of images? 2. Which of the following helps ensure a groups access to resources it needs for survival? 3.

    asked by Pizza on March 15, 2018
  62. Science

    1.   Which of the following is an example of matter?  (1 point) leaves shadows light from the sun sound 2.   Which of the following is an example of a chemical property of matter?  (1 point) ability to melt ability to freeze ability to react

    asked by Jenna on February 26, 2014
  63. science

    which term describes the main process in the water cycle

    asked by ginger on February 21, 2016
  64. Science

    What could the relative age of two rocks tell you about them? a. One rock is 10,000 years old, and the other is 8,000 years old. b. One rock is older than the other. c. They both have fossils in them. d. One rock is closer to the surface than the other.

    asked by Anonymous on October 8, 2013
  65. Science

    Which Idea Is Conveyed In Both "Dust Of Snow" and Who Knows If The Moon's A.Nature can be playful B.Nature can be harsh C.Nature can be annoying D.Nature can be mysterious To Which Sense Do Both "Who Knows If The Moon's" and "Dust Of Snow Appeal Most

    asked by Sid.V on February 11, 2016
  66. science

    Both carbon dioxide and water are pure substances. How are they similar to each other? A. both substances have a set ratio of atoms that cannot be separated by physical means B. both substances have a set ratio of atoms that can be separated by physical

    asked by john on October 8, 2015
  67. science

    calculate the amount of hydrogen gas involved if ferrous + 2hcl = ferrous choloride + h2 if 55 gramme iron is reacting with 36.5 hydrochloric acid .

    asked by sajid on May 24, 2013
  68. Science

    Name two types of evidence used to support the theory of evolution. Explain how scientists use each type of evidence to provide support for evolution. Give one example of each. I need 6 sentences please help I still need to finish other classes and I only

    asked by help!! on May 29, 2018
  69. Science

    What wave property is labeled X? a. Frequency b. amplitude c. wavelength d. wave speed Is it C? Thank you!

    asked by Jane Doe on March 10, 2016
  70. Science

    1.)Ovaries contain A.)Sperms & produce estrogen B.) Sperms & produce testosterone C.)Eggs & produce estrogen D.)Eggs & produce testosterone 2.)The testes produce A.)Sperm & estrogen B.)Sperm & testosterone C.)Eggs & estrogen D.)Eggs & testosterone 3.)After

    asked by Douglas on October 7, 2015
  71. Science

    1. Over time, a particular plant has developed a longer stamen. Which of the following is a possible advantage of having a longer stamen? A. A longer stamen could ensure that an insect brushes against an another and picks up pollen. B. A longer stamen

    asked by Help with science please on January 14, 2014
  72. science

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

    asked by jose on November 7, 2013
  73. science

    1) a pea plant with yellow seeds is crossed with a pea plant with green seeds. all of the offsprings have yellow seeds. the allele for yellow sees is a. Dominate because all offspring have yellow seeds. b. Recessive because all of the offsprings have

    asked by dani on October 21, 2014
  74. Science

    1. What is the main difference between mechanical and electromagnetic waves? A. Mechanical waves involve transfer of energy, electromagnetic waves do not. B. Mechanical waves require a medium to travel in, electromagnetic waves do not.~~~~ C. Mechanical

    asked by Emma on March 14, 2017
  75. Science

    Processing Information 1. Which of the following sets of terms could be used in a description of the peripheral nervous system? :Motor neuron, interneuron, sensory neuron.*** :Brain, sensory neuron, myelin. :Interneuron, spinal cord, autonomic. :Somatic,

    asked by TheLOUDEST_0430 on February 26, 2015
  76. Science

    1. White skin (W) is dominant over yellow skin (w) in chickens. Which of the following genotypes would result in a white-skinned chicken that could possibly have yellow-skinned offspring? A. WW B. Ww** C. ww 2. Which of the following describes the genotype

    asked by Mimmi on October 7, 2015
  77. science

    Tow masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other?

    asked by james on December 13, 2015
  78. science

    Which of the following gases was most likely present in Earth's earliest atmosphere? a. nitrogen b.hydrogen c.argon d.oxygen Help me please!

    asked by Eric on September 13, 2018
  79. Science

    What does the notation TT mean to geneticists? A. Two dominant alleles B. Heterozygous C. At least one dominant allele D. One dominant and one recessive allele Is the answer A?

    asked by Anonymous on October 10, 2014
  80. Science

    Place the following words into the illustration below : gametes, sporophyte, gametomphyte, and zygote. explain how the terms are related

    asked by Meme on December 7, 2016
  81. science

    which type of eclipse would you expect to see if the moon passes directly between earth and the sun? a) a solar eclipse b) a lunar eclipse c) a total lunar eclipse d) a penumbra

    asked by victoria on October 30, 2013
  82. Science

    Which of the following Best describes the movement of an object at rest if no outside forces act on it. It will move due to inertia. Gravity will eventually cause it to move. It will stay at rest due to inertia~~~~~~~ It will stay at rest due to gravity.

    asked by Young on May 21, 2018
  83. science

    Which kind of energy transformation occurs when a skater's board falls back to the ramp?

    asked by bob on May 13, 2016
  84. Science

    1. Which of the following about the suns structure is true? A.The sun has a solid surface. B. The sun has an interior and an atmosphere. * C.The sun's is similar to Earth's; it has a core, mantle, and crust. D. The sun's outermost layer is called the

    asked by TeamWork on March 15, 2016
  85. science

    erosion and weathering are examples of which type of forces ? a) constructive forces b) destructive forces c) gravitational forces d) inertia-related forces

    asked by victoria on November 11, 2013
  86. science

    which of earths spheres contains mountains,valleys , and other landscapes ? a) atmosphere b) biosphere c) geosphere d) hydrosphere

    asked by victoria on November 5, 2013
  87. science

    if all members of a specie disappears, the species is said to be.. a.)extinct b.)endangered c.)threatened D.)keystone

    asked by gabby on November 23, 2015
  88. SCIENCE

    Which of the following activities has a negative impact on biodiversity? a.)Regulating hunting b.)Establishing wildlife preserves c.)Buying a fuel-efficient car d.)Cutting down trees in rain forests to build more houses.

    asked by Anonymous on January 10, 2014
  89. science

    which of the following could be true of two different species that have a competitive relationship in the same ecosystem? A.one species preys on the other B.they relationship is mutually beneficial C.they share the same niche D.one species benefits, while

    asked by Aaron on December 13, 2013
  90. Science

    What distance was used to define the astronomical unit (AU) A. the average distance across the sun, its diameter B. the average distance from the sun to mercury, the closest planet C. the average distance from the sun to earth, our home planet D. the

    asked by Brook on October 26, 2016
  91. Science

    Which process of the carbon cycle is responsible for the release of carbon at the power plant, as shown by the arrow? A. combustion B. photosynthesis C. digestion D. decomposition @Ms.Sue can you check my answer I think the answer is A.

    asked by Ava on November 7, 2015
  92. Science

    1. Which climate is warm, wet, and located on the edges of the tropics? A. temperate marine B. highlands C. temperate continental D. polar 2. Which statement best explains why tropical climates are so hot? A. They receive little rain B. They receive more

    asked by Kpop is real on March 17, 2016
  93. science

    displacement vectors of 5km north, 3km east, 2km south, and 3km west combine to a total displacement of? 3km north 13km west 0km 2km south I think 13km west

    asked by Brandon on February 17, 2012
  94. science

    Running the dishwasher only when it is completely full is an example of? A. recycling resources B. using nonrenewable resources C. reusing resources D. reducing resource use

    asked by CIERRA on April 29, 2014
  95. Science

    1. Kudzu, a nonnative species, was brought to Georgia for decorative purposes. It is a vine that grows quickly and covers anything in its path. It can also grow on trees and block the sunlight. How is kudzu an environmental issue for Georgia? Kudzu can

    asked by Madison on April 26, 2017
  96. science

    suppose that a population of skunks lives on an isolated island is 500 skunks are present today and the birth rate is 65 per week and the death is 47 per week how many skunks to you predict will be on the island 105 days from now and what would a graph

    asked by Anonymous on November 18, 2013
  97. Science

    Heat and pressure deep beneath the Earths surface can change any rock into A) chemical rock B) gemstone C) metamorphic rock D) sedimentary rock

    asked by Zack on February 15, 2017
  98. science

    which of the following statements best describes the biosphere? a) it is a mixture of gases that contain dust particles b)it contains earths metal core c) it contains all of earths water d) it it the part of earth that contains living organisms is it d ?

    asked by victoria on October 30, 2013
  99. Science

    Why does the design of the vacuum flask minimize heat transfer by conduction? A)One flask is smaller than the other flask. B)One flask is more reflective than the other flask. C)There is no air between the two flask. D)The two flask do not touch each

    asked by I need help on January 5, 2016
  100. Science

    Ms. Sue please help. 8. Which would best reduce the amount of energy needed to pull a wagon up a ramp? (1 point) increasing the slope of the ramp reducing the friction between the wagon wheels reducing the length of the wagon handle increasing the friction

    asked by Austin on June 6, 2014