10.The Internet has been used as a rapid means to obtain information, including
ID: 144089 • Letter: 1
Question
10.The Internet has been used as a rapid means to obtain information, including scientific ideas, but generally is less reliable than print media because A) at present, the Internet is less regulated than broadcast and print media. 5) anyone can post "scientific information, regardless of whether the information is misleading or not true. C) Individuals and/or groups may post information to promote their own personal interests rather ideas that have been tested through the scientific process. D) All of the above are correct. 11.Which of the following characteristics applies to both living organisms and nonliving things? A) are made up of matter C) have the ability to store energy for later use E) are made up of cells B) are capable of reproduction D) are capable of growth 12.Which are the characteristics of living things only? A) Made up of cells B) Require energy and raw materials D)Respond to external environment AB)A-E C)Maintain homeostasis E) Grow and reproduce 13.lsotopes of an element have the samebut different A) number of electron shells, numbers of protons B) atomic number, atomic masses C) number of neutrons, numbers of protons D) atomic mass, atomic numbers E) name, chemical symbols 14. Which of the following is true regarding water? A) Each molecule of water consists of two atoms of hydrogen and one atom of oxygen covalently bonded to each other B) The oxygen side of the water molecule is partially positive. C) Water is a type of ion. D) Electrons are shared equally between the atoms of water E) Water molecules are attracted to each other by ionic bonds. 15. Which of the following is true concerning hydrogen bonds? A) They are weak bonds that form between water molecules in liquid form. B) The bonds break when water enters a vapor state and remain broken as long as water molecules remain in the gas phase C) Hydrogen bonds hold strands of DNA together. D) All of the above are correct. 16. Which of the following is a very important source of energy for cells? A) cellulose B) C) starch D) glucose E) ribose 17-22.Fill in the blanks [You can bubble two letters in your scantrons] A) electron B) proton AB) ionic bond C) covalent bond D) neutron E)lons 17. The nucleus of an atom is made up of and protons. 18. The atomic number of an element is the number ofwhich are positively charged. 19.Chemical bonds form when elements share, donate or accept 20.form when atoms gain or lose electrons. 21. The bond that results in the sharing of electrons 22.The bond that forms between positive and negative ions as in table saltExplanation / Answer
12 ans;
maintain homeostasis
13 ans:
atom that has the same number of protons but a different number of neutrons.
14 ans:
each molecule of water consist of two atoms of hydrogen and one atom of oxygen covalently bonded to each other
16 ans
Glucose
17 ans
d) neutrons
18)
b)protons
19) ans
covalent bond
20)ans
ions
21) ans
atoms
22)ans
ionic bond
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