Biology I - Exam 1

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Which of the following is a correct sequence of level in life's hierarchy, proceeding downward from an individual cell?

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All the organisms on your campus make up

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The theory of evolution is a core them in biology.

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New properties emerge at each level in the biological hierarchy.

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Systems biology is mainly an attempt to:

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Which of the following best demonstrates the unity among all organisms?

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Who is credited for developing the theory of evolution in his famous 1859 book on the subject?

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The universal genetic language of DNA is common to virtually all organisms on Earth, however diverse. What is the best explanation for this fact?

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Select the correct statement about the process of scientific inquiry:

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Which of these is an organ system?

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DNA is composed of building blocks called

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In eukaryotic cells DNA has the appearnce of a

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Which of the following attributes is common to both prokaryotic cells and eukaryotic cells?

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How does DNA (deoxyribonucleic acid) encode information?

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To understand the chemical basis of inheritance, we must understand the molecular structure of DNA. This is an example of the application of which concept to the study of biology?

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A localized group of organisms that belong to the same species is called a

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Which taxonomic domain includes multicellular photosynthetic organisms?

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Which of these provides evidence of the common ancestry of all life?

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Which branch of biology is concerned with the naming and classifying of organisms?

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Which of the following is (are) true of natural selection

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Charles Darwin proposed a mechanism for descent with modification that stated that organisms of a particular species are adapted to their environment when they possess ____.

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Which of the following best describes what occurred after the publication of Charles Darwin's On the Origin of Species?

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Darwin's finches, collected from the Galapagos Islands, illustrate which of the following?

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In order for a hypothesis to be able to be used in science, which of the following must be true?

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Which of the following is true of a scientific theory?

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About twenty-five of the ninety-two natural elements are known to be essential to life. Which four of these twenty-five elements make up approximately 96 percent of living matter?

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Which of the following statements is FALSE?

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Knowing the atomic mass of an element allows inferences about which of the following?

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In what ways are elements in the same column of the periodic table the same? They have the same number of ____.

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The atomic number of nitrogen is 7. Nitrogen-15 has a greater mass number than nitrogen-14 because the atomic nucleus of nitrogen-15 contains ____.

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From its atomic number of 15, it is possible to predict that the phosophorus atom has ___.

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Fluorine has an atomic number of 9. Which of the following would you do to a neutral fluorine atom to complete its valence shell?

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Calcium has an atomic number of 20 and a mass number of 35. Therefore, the calcium atom must have:

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Isotopes are atoms that have:

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A single molecule of water is held together by what type of bond

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Oxygen has an atomic number of 9 and most commonly, a mass number of 16. Thus, what is the atomic mass of an oxygen atom?

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If you change the number of neutrons in an atom, you create ____.

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Which of the following is the best description of an atom's physical structure?

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What is the maximum number of covalent bonds that an oxygen atom with atomic number 8 can make with hydrogen?

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Bonds between two atoms that are equally electronegative are ____.

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What results from an unequal sharing of electrons between atoms?

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How many electron pairs are shared between carbon atoms in a molecule that has the formula C2H4?

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Which bond or interaction would be difficult to disrupt when compounds are put into water?

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Water molecules are attracted to one another by ____.

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Van der Waals interactions may result when ____.

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What is the maximum number of hydrogen atoms that can be covalently bonded in a molecule containing two carbon atoms?

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How many electrons are involved in a single covalent bond?

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When are atoms most stable?

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When the atoms involved in a covalent bond have the same electronegativity, what type of bond results?

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You need to represent a molecule to best illustrate the relative sizes of the atoms involved and their interrelationships. Which representation would work best?

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Which property of water allows a paper towel to pick up a puddle of water?

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Which property of water allows dogs to cool themselves by panting?

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Which of the following is a hydrophobic material?

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We can be sure that a mole of table sugar and a mole of vitamin C are equal in their

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The unequal sharing of electrons within a water molecule makes the water molecule ____.

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The tendency of an atom to pull electrons towards itself is referred to as its ____.

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A substance that has affinity for water is said to be:

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Water freezes at ______°C

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The dissolving agent of a solution is the , and the substance that is dissolved is the _?

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Water molecules have a polarity, which allows them to be electrically attracted to other water molecules and other polar molecules by weak chemical bonds known as _____.

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In a single molecule of water, two hydrogen atoms are bonded to a single oxygen atom by ____.

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The partial negative charge at one end of a water molecule is attracted to the partial positive charge of another water molecule. What is this attraction called?

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Water molecules can form hydrogen bonds with ____.

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Many of water's emergent properties, such as its cohesion, its high specific heat, and its high heat of vaporization, result from the fact that water molecules ____.

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Because organisms are primarily made of water, they resist rapid temperature changes. This useful quality is based on water's _____.

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Sodas typically contain sugar, flavorings, coloring agents, and carbon dioxide dissolved in water. The best term to describe this mixture would be ____.

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Which statement must be mentioned in explaining why amphipathic molecules line up at a water surface?

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Why doesn't oil mix with water?

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A solution is aqueous if...

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A 1 M solution contains...

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To act as an effective coolant in a car's radiator, a substance has to have the capacity to absorb a great deal of heat. You have a reference book with tables listing the physical properties of many liquids. In choosing a coolant for you car, which table would you check first?

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Which of the following takes place as an ice cube cools a drink?

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Hydrophobic substances such as vegetable oil are _____.

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Which characteristic of water molecules directly contributes to the remarkable "water walking" success of aquatic insects?

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An acid is a substance that

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The element present in all organic molecules is ____.

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The complexity and variety of organic molecules is due to _____.

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Differences among organisms are caused by differences in the _____.

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Stanley Miller's 1953 experiments supported the hypothesis that ____.

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Which of the following is true of carbon?

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Why is carbon so important in biology?

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How many electron pairs does carbon share to complete its valence shell?

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A carbon atom is most likely to from what kind of bond(s) with other atoms?

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Which of the following statements correctly describes cis-trans isomers?

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Research indicates that ibuprofen, a drug used to relive inflammation and pain, is a mixture of two enantiomers; that is, molecules that ____.

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Compared to a hydrocarbon chain where all the carbon atoms are linked by single bonds, a hydrocarbon chain with the same number of cabon atoms, but with one or more double bonds, will ____.

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Organic molecules with only hydrogens and five carbon atoms cannot ____.

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Thalidomide and L-dopa, shown below are examples of pharmaceutical drugs that occur as enantiomers, or molecules that _____.

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Which of the functional groups below acts most like an acid in water?

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Which two functional groups are always found in amino acids?

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Amino acids are acids because they always possess which functional group?

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Which chemical group can act as an acid?

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What is the name of the functional group shown in the figure below?

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Which molecule shown above contains an amino functional group, but is NOT an amino acid?

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Which of the following is a FALSE statement concerning amino groups? Amino groups ____.

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Form = Function

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Which of the following is an example of qualitative data?

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What is the pH of a neutral aqueous solution?

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Organisms interact with their environments, exchanging matter and energy. For example, plant chloroplasts convert the energy of sunlight into

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Once labor begins in childbirth, contractions increase in intensity and frequency until delivery. the increasing labor contractions of childbirth are an example of which type of regulation?

Test sobre Biology I - Exam 1, creado por acbridges91 el 10/05/2015.

Biology I - Exam 1

Biology I - Exam 1

Which of the following is a correct sequence of level in life's hierarchy, proceeding downward from an individual cell?

All the organisms on your campus make up

The theory of evolution is a core them in biology.

New properties emerge at each level in the biological hierarchy.

Systems biology is mainly an attempt to:

Which of the following best demonstrates the unity among all organisms?

Who is credited for developing the theory of evolution in his famous 1859 book on the subject?

The universal genetic language of DNA is common to virtually all organisms on Earth, however diverse. What is the best explanation for this fact?

Select the correct statement about the process of scientific inquiry:

Which of these is an organ system?

DNA is composed of building blocks called

In eukaryotic cells DNA has the appearnce of a

Which of the following attributes is common to both prokaryotic cells and eukaryotic cells?

How does DNA (deoxyribonucleic acid) encode information?

To understand the chemical basis of inheritance, we must understand the molecular structure of DNA. This is an example of the application of which concept to the study of biology?

A localized group of organisms that belong to the same species is called a

Which taxonomic domain includes multicellular photosynthetic organisms?

Which of these provides evidence of the common ancestry of all life?

Which branch of biology is concerned with the naming and classifying of organisms?