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23 terms

Science - Chapter 1 Grade 5

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organism
any living thing that can carry out its life on its own,
cell
the smallest unit of living thing
chlorophyll
a green chemical in plant cells that allow plants to use the sun's energy to make food.
tissue
a group of similar cells that work together at the same job
classification
the science of organizing categories for living things
kingdom
the largest group into which an organism can be classified
species
a group of similar organisms in a genus that can reproduce more of their own kind.
gymnosperm
a seed plant that does not produce flowers
xylem
the tissue through which water and minerals move up through a plant
phloem
the tissue through which food from the leaves moves throughout the rest of a plant.
cambium
the layer in plants that separates the xylem from the phloem
photosynthesis
the food-making process in green plants that uses sunlight
asymmetrical
cannot be divided into mirror images
radial symmetry
a body plan in which all body parts of an organism are arranged around a central point
skeletal system
the organ system made up of bones, tendons and ligaments
muscular system
the body system made up of muscles that move bones
digestive system
the organ system that breaks down food so it can be absorbed into the blood stream.
excretory system
the organ system that removes cellular wastes from the body
cell membrane
flexible wrapping that surrounds all cells
central vacuole
found in plant cells only
arthropod phylum
has the most species
fungus
breaks down dead organisms to eat
virus
not a living thing but carries out reproduction