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a forest canopy is a kind of opaque object
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sunlight is a kind of light
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if a tree falls then that tree is dead
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large canopies / trees block sunlight from reaching the ground
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light can not travel through an opaque object
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sunlight can be found in the top 100 meters of the ocean
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algae are often restricted to the top 100 meters of the ocean
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solar energy is a kind of light
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algae is a kind of plant
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if an organism is restricted to an area then that organism can only live in that area
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photosynthesis means producers / green plants convert from carbon dioxide and water and solar energy into carbohydrates and food and oxygen for themselves
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sunlight is a kind of light
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rain is a kind of precipitation
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an animal needs to move to find shelter
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precipitation is a kind of weather
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shelter can protect animals from weather
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protecting an animal has a positive impact on that animal
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if performing an action has a positive impact on an animal, then that animal will likely perform that action
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temperature is a measure of heat energy
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warmer means greater / higher in temperature
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as temperature in the environment increases , the body temperature of a reptile in that environment will increase
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reptiles become more active as the day gets warmer
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warmer means greater / higher in temperature / warmth
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as temperature during the day increases , the temperature in an environment will increase
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being active requires energy
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cooling means decreasing heat / temperature
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panting is when an animal 's body is cooled by hanging out their tongue
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sweat cools a body
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if the environmental temperature is too hot then an animal in that environment may become hot
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if an animal becomes too hot then that animal may die
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sweat is used for adjusting to hot temperatures by some animals
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adapting is when a living thing responds to a change in an environment
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an animal is a kind of organism
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objects in an environment are a part of that environment
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a cat is startled by a loud noise
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if something causes something else, then that something else is a response to that something
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objects in an environment may produce loud noises
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a cat is a kind of animal
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a cat jumps when startled
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as the rate of a heart beating increases , the rate of the blood traveling to the rest of the body will increase
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heart pumps blood to the rest of the body
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muscle cells are a part of muscles
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blood is a vehicle for carrying oxygen from the lungs to the rest of the body
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if something is transported to something else then that something else receives that something
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muscels are a part of the body
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sweat is used for adjusting to hot temperatures by some animals
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sweat is a kind of liquid
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water is a kind of liquid at room temperature
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heat means temperature increases
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to sweat means to discharge sweat from the skin
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special molecules carry messages from the cell membrane to the cell nucleus
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a cell nucleus is a kind of organelle
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an animal 's brain controls that animal
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if two things perform the same function then those two things are similar
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the endocrine system carries messages from the body to the brain
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the cell nucleus controls many of the functions of the cell
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the body is a part of an organism
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breathing out is when animals exhale carbon dioxide from their lungs into the air
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animals are a source of carbon dioxide by exhaling
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breathing is when animals convert oxygen into carbon dioxide
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a source of something produces that something
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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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living things require respiration to use energy
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breathing is when an animal converts oxygen in their environment into oxygen in blood
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water contains dissolved oxygen
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a fish is a kind of aquatic animal
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gills are used for breathing water by aquatic animals
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water is a part of an environment
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in order to convert oxygen in water into oxygen in blood, fish must take in oxygen from water
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an animal requires oxygen for survival
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breathing is when a gill converts from oxygen in water into oxygen in blood
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a fish is a kind of aquatic animal
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in water means underwater
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gills are used for breathing water by aquatic animals
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adaptations are used for survival
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the lungs are a part of the respiratory system
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blood is a part of the circulatory system
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converting oxygen from air into oxygen from blood means absorbing oxygen from air into the blood
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breathing is when a lung converts from oxygen in air into oxygen in blood
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a lung is a kind of organ for breathing air
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to transfer can mean to move
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if something is absorbed by something else, then that something is transferred to that something else
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in order to breath air you must take in air
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air is a kind of gas
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air is a part of the environment
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breathing in is when animals inhale air into their lungs
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something exchanging things with something else means that something taking one kind of thing from that something else and giving off another kind of thing to that something else
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the lungs are a part of the respiratory system
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breathing out is when animals exhale / expel carbon dioxide from their lungs into the air
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a lung is a kind of organ for breathing air
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carbon dioxide is a kind of gas
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an example of giving something off is an animal exhaling
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an example of taking something in is an animal inhaling something
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the lungs are a part of the respiratory system
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to exchange things between something and something else means that something takes in one kind of thing from that something else and expels another kind of thing into that something else
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the respiratory system takes in oxygen from the air
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breathing out is when animals exhale / expel carbon dioxide from their lungs into the air
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the lungs are a part of the body of an animal used for breathing air
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the respiratory system is a part of the body
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lungs are a part of the body
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