Science exam 50 multiple choice, science homework help

QUESTION 1

  1. What drives the global atmospheric circulation?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 2

  1. Weather is defined as the state of the atmosphere with regard to
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 3

  1. Which of the following are both sedimentary rocks?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 4

  1. Which of the following is an example of the law of unintended consequences in action at Lake Victoria, Africa?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 5

  1. Which term refers to the particular way an organism obtains matter and energy?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 6

  1. The importance of the ozone layer to Earth’s inhabitants is
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 7

  1. Which of the following is not true about all living things?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 8

  1. “Cold-blooded” is a term that can refer to
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 9

  1. What is NOT a function of the cell membrane?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 10

  1. Which pair of organelles transfers energy in cells?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 11

  1. In the process of photosynthesis
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 12

  1. Which is not an example of a lipid?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 13

  1. One difference between carbohydrates and proteins is
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 14

  1. What is the cellular function of deoxyribonucleic acid?
    1) provides structure to the nucleus
    2) governs all chemical functions
    3) carries inheritance information
    4) serves as an antibiotic for bacteria
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 15

  1. Which statement about viruses is false?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 16

  1. DNA fingerprinting works to identify criminals because
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 17

  1. What is cancer?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 18

  1. Which of the following is found in a fossil record?
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 19

  1. The “primordial soup” of the Miller-Urey experiments contained
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 20

  1. The first cell on Earth was remarkable because it
    a.
    b.
    c.
    d.
    e.

2 points

QUESTION 21

  1. Earth’s surface has about 10% more water now than it did
    before the volcanic outgassing period of Earth’s early history.





2 points

QUESTION 22

  1. Sedimentary rocks may become metamorphic rocks, but
    metamorphic rocks never become sediments.





2 points

QUESTION 23

  1. Volcanic rock and extrusive rock are two names for rocks that are
    made when molten material solidifies on the Earth’s surface.





2 points

QUESTION 24

  1. Chlorofluorocarbons replaced Freon as a coolant in air
    conditioners and refrigerators.





2 points

QUESTION 25

  1. The United States did not sign the international Kyoto accord.





2 points

QUESTION 26

  1. Sugar molecules are the building blocks of cell membranes.





2 points

QUESTION 27

  1. The cell membrane is made from amino acids.





2 points

QUESTION 28

  1. Cytoplasm is the fluid that takes up spaces between the organelles
    of a cell.





2 points

QUESTION 29

  1. The primary difference between a prokaryote cell and a eukaryote
    cell is the nuclear membrane in the latter.





2 points

QUESTION 30

  1. The “unit of inheritance” is the cell.





2 points

QUESTION 31

  1. Three types of RNA are used in protein assembly.





2 points

QUESTION 32

  1. Genetic engineering is based in part on the study of how viruses
    manipulate the cell replication processes.





2 points

QUESTION 33

  1. Totipotent cells are valuable to research because of their ability to become any tissue.





2 points

QUESTION 34

  1. The first animal cloned was a fruit fly.





2 points

QUESTION 35

  1. Farmers understood natural selection concepts before Charles
    Darwin ever sailed to the Galapagos Islands.





2 points

QUESTION 36

  1. Darwin’s Origin of the Species is important because it presents a
    single theory that unifies all of biology.





2 points

QUESTION 37

  1. Virtually all contemporary scientists accept evolution true.





2 points

QUESTION 38

  1. Natural selection would be impossible without genetic diversity.





2 points

QUESTION 39

  1. Computer designed drugs will greatly decrease the time and
    increase the efficiency of drug research and development.





2 points

QUESTION 40

  1. Viruses depend upon the host cell mechanisms to reproduce.





2 points

QUESTION 41

  1. Any change in the DNA is called a/an

2 points

QUESTION 42

  1. An organism that always produces offspring having the same form of a certain trait is said to be

2 points

QUESTION 43

  1. The disease known as AIDS is caused by the virus.

2 points

QUESTION 44

  1. Any structure that helps an animal survive and pass on its genes is called a/an

2 points

QUESTION 45

  1. is the term used to describe the division of one cell into two.

2 points

QUESTION 46

  1. Humans have pairs of chromosomes.

2 points

QUESTION 47

  1. A/an is a molecule that facilitates bonding between two other molecules.

2 points

QUESTION 48

  1. The branch of science that gives names to organisms is

2 points

QUESTION 49

  1. The kingdom that contains multicellular organisms that get their energy and nutrients by eating other organisms is

2 points

QUESTION 50

  1. A/an includes the plants, animals and microorganisms that live in a given area together with their physical surroundings.

2 points

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