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20 Cards in this Set
- Front
- Back
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What are all living organisms composed of?
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cells.
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All living organisms are composed of cells that may be what unicellular or ________.
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multicellular.
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The cell is..
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the basic unit of life.
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Cells arise from what?
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pre-existing cells.
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What does an ecosystem involve?
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interactions between communities and their environment.
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What does a community consist of?
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different populations in a given geographic area.
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What does the environment include?
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everything from people to plants.
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What is an organism?
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an individual animal, plant, or single-celled life form.
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What are organ systems?
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systems which work together to keep the body functioning normally.
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What are organs?
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collection of tissues joined in structural unit to serve a common function.
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What are tissues?
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group of cells with both a shared stucture and function.
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What are cells?
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the basic structural unit of all organisms.
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What is the major role of the Skeletal System?
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to provide support for the body, to protect delicate internal organs and to provide attachment sites for the organs.
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What are the major organs in the Skeletal System?
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bones, cartilage, tendons and ligaments.
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What is the major role of the Muscular System?
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to provide movement.
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What do muscles do?
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work in pairs to move limbs and provide the organism with mobility.
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What do muscles control?
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movement of materials through some organs.
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What are the major organs in the Muscular System?
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skeletal muscles and smooth muscles throughout the body.
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What is the major role of the Circulatory System?
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to transport nutrients, gases, hormones and wastes through the body.
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Whar are the major organs in the Circulatory System?
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heart, blood, vessels and blood.
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