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| Which of the following is characteristic of all living things? |
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All of the above
reproduction, cellular organization, & metabolism |
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| As a characteristic of all living things, homeostasis relates most directly to which of the following biological themes? |
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| maintaining a stable internal environment |
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| The energy that drives metabolism in animals comes from |
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| In what direction does energy flow? |
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| sunplantsplant eatermeat eater |
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| Most typically, the order in which the steps of scientific investigations are applied is |
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| observations, questions, hypothesis, predictions, controlled testing, conclusions |
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| Scientists usually design experiments |
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| with a good idea of the expected experimental results |
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| A hypothesis that is not supported by the data that has been collected and analyzed |
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| A planned procedure to test a hypothesis is called a(n) |
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| The variable that is measured in an experiment is the ____ variable |
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| may be revised as new evidence is presented |
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| Water is important to life because it |
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All of the above ~
surrounds all cells.
is found inside cells. |
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| no negative or positive poles |
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| Water is a polar molecule because |
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| different parts of the molecule have slightly different charges. |
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| Acidic solutions have a pH that is |
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| Which of the following is not an organic macromolecule? |
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| All organic compounds contain the element |
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| Long chains of amino acids are found in |
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| The two types of nucleic acids are |
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All of the above ~
is not used up when catalyzing a reaction.
lowers the activation energy of a reaction.
bonds with a substrate molecule at the enzyme’s active site. |
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| A microscope with a 4x objective lens and a 10x ocular lens produces a total magnification of |
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| Refer to the illustration 1, Which structure immediately identifies this cell as a eukaryote? |
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| Refer to the illustration 1. In eukaryotic cells, chromosomes are found in |
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| Refer to the illustration 1, Structure 5 is |
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| Refer to the illustration 1, Structure 2 is |
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| Refer to the illustration 1, The cell uses structure 3 |
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| Refer to the illustration 1, The cell shown is probably an animal cell because it |
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| does not have a cell wall |
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| Refer to the illustration 1, The structure that acts as a gate to the cell’s interior is labeled |
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| One difference between prokaryotes and eukaryotes is that |
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| prokaryotes do not have a nucleus |
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| Which of the following is an example of a prokaryotic cell? |
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| Only eukaryotic cells have |
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| membrane-bound organelles |
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| A structure within a eukaryotic cell that performs a specific function is called a(n) |
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All of the above ~
encloses the contents of a cell.
allows materials to enter and leave the cell.
is selectively permeable. |
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| In a cell, proteins are made on the |
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| A cell that requires a lot of energy might contain large numbers of |
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| The organelles associated with plant photosynthesis are the |
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| As a result of diffusion, the concentration of many types of substances |
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| eventually becomes balanced on both sides of a membrane |
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| Refer to the illustration 2,. The process shown is called |
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| Diffusion is the movement of a substance |
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| from an area of high concentration to an area of lower concentration |
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| The diffusion of water into or out of a cell is called |
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| Which of the following does not require energy? |
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| The major atmospheric by-product of photosynthesis is |
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| The process in which plants capture energy and make organic molecules is known as |
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| The process of cellular respiration |
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| breaks down food molecules to release stored energy. |
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| is the process by which bacteria reproduce. |
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| The point at which two chromatids are attached to each other in a chromosome is called a(n) |
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| In order to fit within a cell, DNA becomes more compact by |
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| wrapping tightly around associated proteins. |
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| Normal human males develop from fertilized eggs containing which of the following sex chromosome combinations? |
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| The X and Y chromosomes are called the |
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| The diploid number of chromosomes in a human skin cell is 46. The number of chromosomes found in a human ovum is |
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