sentences stringlengths 9 187 | label int64 0 1 |
|---|---|
selective breeding is when an organism receives selective genetic traits from its parents by human design | 1 |
human are breeding german shepherd dogs to other smaller dogs | 1 |
smaller dogs have genetic trait of smaller size | 1 |
siberian tigers only have female tigers in the species | 1 |
if all members of a species cannot produce offspring then that species will likely become extinct | 1 |
two females cannot usually reproduce with each other | 1 |
sexual reproduction is a source of genetic variatio in offspring | 1 |
genetic variation in offspring has a positive impact on an offspring 's survival | 1 |
asexual reproduction is not a source of genetic variation in offspring | 1 |
reproduction produces / produce offspring | 1 |
sexual reproduction is a kind of reproduction | 1 |
genes are a kind of genetic material | 1 |
offspring receive genes from their parents through sexual reproduction | 1 |
preventing reproduction decreases the rate of reproduction | 1 |
sexual reproduction requires both sperm and egg | 1 |
if something required for a process is not produced then that process is prevented from occurring | 1 |
the sperm production is prevented in male insects | 1 |
sexual reproduction is a kind of reproduction | 1 |
as the rate of reproduction decreases , the population will decrease | 1 |
a flower produces seeds | 1 |
seeds are produced in the stage of pollination in plants reproduction | 1 |
pollination is the fertilization stage in plants reproduction | 1 |
fertilization is a stage in the sexual reproduction process | 1 |
genetic variation in offspring has a positive impact on an offspring 's survival | 1 |
sexual reproduction is a source of genetic variatio in offspring | 1 |
asexual reproduction is not a source of genetic variation in offspring | 1 |
genes are able to determine the inherited characteristics of a living thing | 1 |
a son is a kind of male offspring | 1 |
offspring receives half of the genes from each parent | 1 |
a father is a kind of male parent | 1 |
a mother is a kind of female parent | 1 |
fire is a kind of chemical reaction | 1 |
chemical reactions cause new substances to form | 1 |
fire causes burning | 1 |
the candle is burning | 1 |
kim's hammer is flaky on the surface | 1 |
a hammer often is made of metal | 1 |
rust forming is a kind of chemical change | 1 |
when a metal rusts , that metal becomes flaky on the surface | 1 |
different substances have different chemical properties | 1 |
a corn is a kind of object | 1 |
chemical reactions cause different substances to form | 1 |
popping popcorn requires adding heat to the corns | 1 |
adding heat to an object sometimes causes chemical reactions | 1 |
chemical change is a kind of chemical reaction | 1 |
fire is a kind of chemical reaction | 1 |
lighting a candle causes that candle to burn | 1 |
fire causes burning | 1 |
chemical reactions cause chemical change | 1 |
fire is a kind of chemical reaction | 1 |
a leaf is a kind of object | 1 |
fire causes burning on objects | 1 |
baking is a kind of cooking | 1 |
cooking food requires adding heat energy to the food | 1 |
the dough is baked to form the crust of a pizza | 1 |
chemical reactions cause chemical change | 1 |
adding heat to food usually causes chemical reaction | 1 |
element 3 turns to a greenish color | 1 |
an element is a kind of substance | 1 |
if the color of a substance changes then a chemical change may have occurred | 1 |
a car fender is sometimes made of metal | 1 |
metal rusts | 1 |
rust forming is a kind of chemical change | 1 |
metal in contact with water and oxygen will rust | 1 |
air contains oxygen and water vapor | 1 |
the metal on the roof of a car is exposed to air | 1 |
if something is exposed to air, then that something is in contact with air | 1 |
oxygen is a kind of element | 1 |
a compound is made of two or more elements chemically combined | 1 |
water is made of hydrogen and oxygen chemically combined | 1 |
hydrogen is a kind of element | 1 |
when two substances together form a compound then those substances cannot be physically separated | 1 |
the new substance cannot be physically separated | 1 |
a new substance glycogen is produced in the conversion | 1 |
chemical reactions cause new substances to form | 1 |
chemical reactions cause different substances to form | 1 |
batter and cake are different substances | 1 |
burning a match will produce ashes | 1 |
match and ashes are different substances | 1 |
lighting a match causes that match to burn | 1 |
baking a cake turns batter into a cake | 1 |
chemical reactions cause chemical change | 1 |
iron is a kind of metal | 1 |
rust forming is a kind of chemical change | 1 |
nails are often made of iron | 1 |
metals in contact with water and oxygen will rust | 1 |
magnesium is a kind of substance | 1 |
a lit candle is a source of fire | 1 |
chemical reactions cause chemical change | 1 |
fire is a kind of chemical reaction | 1 |
fire causes burning | 1 |
sodium is a kind of element | 1 |
a compound is made of two or more elements chemically combined | 1 |
sodium chloride is always made of chemically combined chlorine and sodium | 1 |
chlorine is a kind of element | 1 |
wood burns | 1 |
wood chips are made of wood | 1 |
fire is a kind of chemical reaction | 1 |
chemical reactions cause chemical change | 1 |
fire causes burning | 1 |
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