sentences
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algae is a kind of plant
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a body of water is a kind of marine ecosystem
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food is a source of energy for animals / plants
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running is a kind of movement
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to require something means to need something
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a dog is a kind of animal
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an animal requires energy to move
1
one can get something from a source
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living things all require energy for survival
1
if something is a source of something else then that something else comes from that something
1
if a living thing requires something for survival then that living thing depends on that something
1
the sun is the source of energy for life on earth
1
the sun is the source of energy for life on earth
1
a beach is a kind of habitat / environment
1
organisms are a kind of life on earth
1
environments are a part of earth
1
sunlight is a kind of solar energy
1
a plant is a kind of living thing
1
if a living thing requires something then that living thing must obtain that something
1
solar energy is a kind of energy
1
green plants provide food for themselves / animals / consumers by performing photosynthesis
1
a plant / living thing requires food for survival
1
to obtain something means to get somehting
1
a plant requires sunlight for photosynthesis
1
grass is a kind of green plant
1
a mouse is a kind of animal
1
a field is a kind of environment
1
mice live in in holes under the ground in fields / in forests
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as the supply of food in an environment decreases , the population of animals in that environment will decrease
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a fish is a kind of organism
1
an animal is a kind of living thing
1
a scavenger is a kind of organism
1
if an organism eats something then that something is a source of frood to that organism
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scavengers eat dead organisms
1
a fish is a kind of animal
1
if the amount of something increases then there will be more of that something
1
if something causes a living thing to be dead then that something increases the amount of those living things that are dead
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if a living thing dies then that living thing is dead
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the main source of food for coyotes is mice
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a mouse is a kind of animal
1
if an animal eats other animals for food , then the animal will be the predator
1
population is a measure of the number of a species in an environment
1
coyotes are a kind of species
1
if a new predator begins eating prey then the population of that prey will decrease
1
a coyote is a kind of animal
1
a coyote is a kind of living thing
1
as population of prey decreases , the population of predators will decrease
1
living things eat their food source
1
if something decreases then that something will be fewer in number
1
if an animal is eaten by other animals , then the animal will be the prey
1
fish eat insects
1
population is a measure of the number of a species in an environment
1
if something decreases in number then there will be fewer of that something
1
a lake is a kind of body of water
1
predators eat prey
1
if an animal eats other animals for food , then the animal will be the predator
1
a body of water is a kind of environment
1
as population of predators increases , the population of prey will decrease in an environment
1
a organism requires food for survival
1
the decrease of something required by an organism has a negative impact on that organism 's survival / that organism 's ability
1
population is a measure of the number of a species in an environment
1
predators eat prey
1
if an organism eats something then that something is a source of frood to that organism
1
negative impacts on organisms / species will decrease the population of the organisms / the species
1
food supply often limits predator population size in an ecosystem
1
a bear is a kind of predator
1
a forest is a kind of ecosystem
1
population is a measure of the number of a species in an environment
1
as population of prey decreases , the population of predators will decrease
1
hawks eat snakes / rats / rabbits
1
if an animal eats other animals for food , then the animal will be the predator
1
to decrease can mean to decline
1
predators eat prey
1
population is a measure of the amount of a certain species of animal in an evironment
1
if something is eliminated then the amount of that something decreases
1
as a population of organisms increases , the resources used by those organisms will decrease
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danger has a negative impact on a thing
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a required resource being low in availability has a negative impact on the something that requires that resource
1
oxygen levels are a measure of the amount of oxygen in an environment
1
an algal bloom causes an increase of bacteria in an environment
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an animal / bacterium requires oxygen for survival / to breathe
1
an bacterium requires oxygen for survival / to breathe
1
a fish is a kind of animal
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helping bodily processes has a positive impact on an animal / an animal 's health
1
digestion is a kind of bodily process
1
a human is a kind of animal
1
bacteria can help digest food in humans
1
if something has a positive impact on something else then that something is good for that something else
1
digestion is when stomach acid breaks down food
1
a plant is a kind of living thing
1
an animal needs to eat food for nutrients
1
in the food chain process an animal has the role of consumer which eats producers / other animals for food
1
green plants are a kind of producer
1
a moose is a kind of animal
1
an animal / living thing requires nutrients for survival
1
if a living thing needs something to survive then that living thing depends on that something to survive
1
a rose is a kind of plant
1
the student wants to grow roses
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weeds use up nutrients
1
a plant requires nutrients to grow
1