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5.5 Living Systems
VA Science SOL 5.5 Vocabulary
20
Science
5th Grade
03/12/2013

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Term
adaptations
Definition
physical characteristics and behaviors that allow plants and animals to satisfy life's needs and respond to the environment
Term
camouflage
Definition
a structural adaptation that lets an animal blend into an environment so that it is almost impossible to see
Term
cell
Definition
the smallest unit of life
Term
cell membrane
Definition
the outside layer of a cell that controls what goes in and out of the cell
Term
cell wall
Definition
an outer layer of a plant cell that provides extra support
Term
chloroplast
Definition
a cell part in plants that makes food for the cell
Term
cytoplasm
Definition
the fluid inside a cell
Term
dormancy
Definition
a period of inactivity
Term
hibernation
Definition
a deep winter sleep that allows an animal's body to slow down so much that it can survive without eating or drinking
Term
invertebrate
Definition
an animal without a backbone
Term
mimicry
Definition
a structural adaptation that lets certain species look like other more dangerous ones
Term
mitochondria
Definition
tiny power centers of plant and animal cells that convert sugars into usable energy for the cell
Term
multicellular organism
Definition
made of more than one cell
Term
nonvascular plant
Definition
a plant without a system to transport water and food to its cells
Term
nucleus
Definition
the control center in both animal and plant cells
Term
organism
Definition
any living thing such as a plant, animal, fungus, yeast, or bacterium
Term
unicellular organism
Definition
made of only one cell
Term
vacuole
Definition
the part of a cell that stores food, water, and waste
Term
vascular plant
Definition
a plant with a system to transport water and food to its cells
Term
vertebrate
Definition
an animal with a backbone
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