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the muscular system contains muscles
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microtubules in eukaryotic organisms help cells move
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if two things perform the same function then those two things are similar
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microfilaments in eukaryotic organisms give cells structure
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push is a kind of force
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a pull is a kind of force
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muscle cells are a part of muscles
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force requires energy
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muscles push / pull bones to move the bones
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if something requires something else, then that something is likely to have many of that something else
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mitochondrea play a large role in energy processes within a body
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organelle are a part of a cell
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if something plays a large role in a process, then that something is required for that process
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a mitochondrion is a kind of cellular organelle
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a body can be a part of a robot
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a computer controls a robot
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an animal 's brain controls that animal
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the brain is a part of the central nervous system
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controlling is a kind of function
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the nervous system is used for controlling the body
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if two things perform the same function then those two things are similar
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the skeletal system is a kind of body system
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a body system is a part of the body
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the muscular system is a kind of body system
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the nervous system is used for controlling the body
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the interaction of the skeletal and muscular systems produces locomotion
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to control something can mean to coordinate something
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an organ is a part of a body system
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a body system is a part of the body / an animal
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the nervous system is a kind of body system
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if a part of a system can control that system, then that part is a major part of that system
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the brain is a part of the central nervous system
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the brain can control animal body through the nervous system
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the brain, spinal cord, and nerves work together
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if things make up something, then those things combine to form that something
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the brain is a part of the body
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the spinal cord is a part of a body
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an organ system is made of different parts of the body working together
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nerves are a part of the body
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if something is used for a performing a process, then performing that process is a function of that something
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sexual reproduction is a kind of reproduction
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producing offspring ensures the continuation of a species
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reproduction produces offspring
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the reproductive system is used for sexual reproduction
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the testes is a source of male gametes in animals
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a source of something produces that something
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a human is a kind of animal
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a tail is a part of a sperm cell
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a tail is not part of an egg cell
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a characteristic is a part of the whole
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texture is a kind of physical property
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feeling is when an living thing senses through touch
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physical properties can be detected by feeling
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something hard can be used for protection
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most major organs are internal organs
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the body is a part of an animal
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internal organs are a part of the body
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bone is hard
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protecting part of something helps to protect that something
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skeletal system is made of bones
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skeletal system is made of bones
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if something causes something else to change, then that something affects that something else
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a disease causes bones become weak and brittle
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to become something is a kind of change
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jaws are part of an animal used for eating
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jaws are a part of an animal's skull
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if one type of animal has a different feature compared to another type of animal, then that feature is specific to that type of animal
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teeth have different shapes for eating different foods
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carnivores only eat animals
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herbivores only eat plants
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teeth are part of an animal used for eating
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jaws have different shapes for eating different foods
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if a part of an animal is specific to a type of animal, then that part can be used to determine whether or not that animal was that type of animal
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teeth are a part of an animal's skull
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a fish is a kind of scaled animal
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protecting is a kind of function
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scales are used for protection by scaled animals
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a western coral snake is poisonous
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arizona mountain king snakes are not poisonous
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coloration is a kind of adaptation for hiding / camouflage
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arizona mountain king snakes have a striped color pattern
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western coral snakes have a striped color pattern
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a poisonous animal is dangerous
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a color pattern is a kind of coloration
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mimicry is used for avoiding predators by animals by camouflaging as a dangerous animal
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harmful substances can cause disease in human
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skin is a kind of organ
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skin is used for protecting the body from harmful substances
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skin is made of skin tissues
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organs are made of different types of cellular tissues
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cellular respiration is when a cell converts from oxygen and carbohydrates into carbon dioxide, water, and energy
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carbohydrates are made of sugars
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in the cellular respiration / animal respiration process carbon dioxide is a waste product
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animal cells cannot perform photosynthesis
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plant cells can perform photosynthesis
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photosynthesis is a source of energy for the plant by converting carbon dioxide, water, and sunlight into carbohydrates
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carbohydrates contain chemical energy
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an apple tree is a kind of plant
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all living things are made of cells according to the cell theory
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a human is a kind of animal
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