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32 Cards in this Set
- Front
- Back
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What is cell theory?
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All living organisms are composed of cells.
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What is an ecosystem?
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involve ineractions between communities and thei environment.
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What is an organism?
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And individual animal
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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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Goups of cells with both a shared structure and function.
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What are cell?
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The basic structural unit of all organisms/
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What is a community?
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Consists of different populations in a given geographic area.
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communities consist of different what?
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Populations
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The environment includes everything from people to what?
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Plants
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What are the major roles of the skeletal system?
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The main role of the skeletal system is to provide support for the body
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What are the major organs in the skeletal system?
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Bones
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What is the major role of the muscular system?
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The main role of the muscular system is to provide movement. Muscles work in pairs to move limbs and provide the organism with mobility. Muscles also control the movement of materials though some organs
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What are the major organs of the muscular system?
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Skeletal muscles and smooth muscles throughout the body.
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What is the major roll of the circulatory system?
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The main role of the circulatory system is to transport nutrients, gases and wastes through the body.
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What are the major organs of the circulatory system?
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Heart, blood vessels and blood
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What are the major roles of the nervous system?
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The main role of the nervous system is to relay electrical signals though the body.
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What are the major organs of the nervous system?
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Brain, spinal cord and peripheral nerves
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What is the main role of the respiratory system?
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The main role of the respiratory system is to provide gas exchange between the blood and the environment.
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What are the major organs of the respiratory system?
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Nose, trachea and lungs
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What is the major role of the digestive system?
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The main role of the digestive system is to breakdown and absorb nutrients that are necessary for growth and maintenance.
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What are the major organs of the digestive system?
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Mouth,esophagus,stomach,small and large intestines
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what is DNA?
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The blueprint of life instructing cells how to develop and how to function. DNA is found in the nucleus of the cell.
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What is a gene?
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Sequence of DNA that determines a particular trait.
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What is an allele?
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another name for gene
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what is a dominan gene/allele?
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more common gene or allele that over powers a recessive and shows up in a population more often.
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what is a recessive gene/ allele?
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Weaker
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What is an offspring?
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result of a cross of two parents.
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What are gametes?
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Reproductive cells that contain one half of an individuals DNA( sperm-male
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What is heredity?
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The passage of genetic instructions from one generation to the next.
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what is asexual reproduction?
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reproduction where and exact copy of the parents genetic material is passed on to the offspring. Most common in simple one celled organisms.
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What is sexual reproduction?
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ability to generate extensive amounts of genetic diversity
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