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science l2c3
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| Question | Answer |
|---|---|
| A large animal is composed of trillions of tiny _____________________ working together. | cells |
| _____________________ organisms are made of only one cell. | Unicellular |
| Unicellular organisms are __________________________ or prokaryotes. | eukaryotes |
| A cell without a membrane-bound nucleus is a(n) ________ cell. | prokaryotic |
| A(n)__________ cell has a nucleus surrounded by a membrane and many other specialized organelles. | eukaryotic |
| Each type of cell in a multicellular organism has a specific job that is important to the _________ of the organism | function |
| Cells become different types during _______________. | cell differentiation |
| Nearly all the cells in an organism have identical _________. | DNA |
| Different types of cells use _______of the chromosome. | different instructions(genes) |
| ___________are unspecialized cells that can develop into many different cell types. | Stem cells |
| Stem cells can produce new muscle cells when __________ are torn. | fibers |
| In plants, unspecialized cells like animal stem cells are grouped in areas called ________________. | meristems |
| _____________are groups of similar types of cells that work together to carry out specific tasks. | Tissues |
| Most animals have four main types of tissue-muscle, epithelial, nervous, and ________________. | connective |
| The three main types of plant tissue are dermal, ____________________,and ground tissue | vascular |
| . ______________jobs in organisms require more than one type of tissue | Complex |
| _________________are groups of different tissues working together to perform a particular job. The leaf is a(n) _____ that specializes in photosynthesis. | Organs(1) Organ(2) |
| ______________are groups of different organs that work together to complete a series of tasks. | Systems |
| One human organ system, the ____________________ includes the stomach and intestines. | digestive system |
| Plants have two major organ systems-the shoot system and the _______________ system. | root |
| _________________organisms usually have many organ systems. | Multicellular |
| Each organ system __________________on the others and cannot work alone. | depends |
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