BJU 6th Science - Chapter 4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Organism | a complete living thing
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| Life span | process of birth, growth, reproduction and death
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| Life cycle | life span
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| Environment | surroundings
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| Energy | ability to do work
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| Cell | tiny unit of living material surrounded by a thin membrane
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| Cell theory | theory that all living things are made of cells
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| Microscope | uses lenses to magnify objects
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| Specimen | object looked at under a microscope
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| Slide | glass plate on which specimen is placed
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| Unicellular | an organism consisting of one cell
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| Multicellular | an organism consisting of many specialized cells
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| Tissue | a group of cells working together
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| Organ | different types of tissue working together; an example is the heart
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| System | group of organs working together; an example is the circulatory system
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| Cell membrane | a cell’s external boundary for the material inside the cell
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| Cytoplasm | a jellylike substance made mostly of water and containing many substances, such as proteins and fats, that are essential to the cell
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| Organelle | a tiny structure inside the cytoplasm of most cells that helps carry out the function of the cell
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| Nucleus | a large organelle that contains the chromosomes
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| Chromosome | tight bundles of DNA; usually found in the nucleus of a cell
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| Mitochondria | the cell’s engine; responsible for breaking down the cell’s food and releasing energy
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| Endoplasmic reticulum (ER) | the cell’s system of passageways that allows material to move from one part of the cell to another
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| Ribosome | makes proteins that the cell needs
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| Vacuole | a bubble-like organelle in cells; generally used for storage
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| Cell wall | a rigid structure that provides support for some kinds of cells
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| Chloroplast | organelles that contain chlorophyll; organelles in which photosynthesis takes place
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| Chlorophyll | a green pigment that absorbs energy from sunlight and uses it to produce food and energy for the plant
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| Cytologist | a scientist who studies cells
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| Cell division | process where a cell divides into 2 cells
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| Mitosis | division process where 2 new cells are created which are identical to the parent cell
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| Sexual reproduction | process of creating new life from 2 parent cells
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| Meiosis | process where chromosomes duplicate once and cells divide twice
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| Criteria | A standard, rule, or test on which a judgment or decision can be based
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| Classification | way of organizing organisms according to characteristics; Kingdom -> Phylum -> Class -> Order -> Family -> Genus -> Species
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| Bacteria | smallest living thing known to man, unicellular, live in colonies
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| Colony | group of bacteria
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| Protozoan | the more animal-like organisms in the kingdom Protista; able to move around and often live in water
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| Algae | plantlike organisms in Kingdom Protista; usually can perform photosynthesis and are not mobile
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| Leaven | yeast
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| Photosynthesis | process used by plants to convert sunlight (energy) to a usable source of energy (sugar)
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| Common name | a widely recognized name
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| Kingdom | broadest category of living things
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| Phylum | primary division under each Kingdom
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| Class | the groups that the phylum is broken down into
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| Order | the third grouping under Kingdom; further divides the class
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| Family | Order breaks into the classification of family
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| Genus | the first name in a scientific name
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| Species | the second name in a scientific name
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| Scientific name | unique to each organism; 2 parts-the Genus name and the species name Example: Canis familiaris (dog)
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To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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