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Grade 4 A-1 Sci. Def
Living Things
Term | Definition |
---|---|
cell | The basic building block of life |
cell membrane | The thin layer that encloses and gives shape to a cell |
cytoplasm | A jellylike substance that fills most of the space in a cell |
nucleus | A cell's control center |
cell wall | A structure that keeps a cell rigid and provides support to an entire plant. |
chloroplast | A part of a plant cell that contains chlorophyll, the green pigment plants need to make their food |
microorganisms | Organisms that are so small they can only be seen with a microscope |
vertebrate | An animal with a backbone |
invertebrate | An animal without a backbone |
arthropod | An invertebrate with legs that have several joints |
embryo | A young plant |
flowers | Reproductive structures in flowering plants |
fruit and protects the seeds | The part of a flowering plant that surrounds |
fungi | Living things such as mushrooms that look like plants, but can not make their own food |
hyphae | Densely packed threadlike parts of a fungus |
spore | A tiny cell that ferns and fungi use to reproduce |
mold (fungus) | A common type of fungi that often looks cottony or woolly |