Silver Burdett/

Science: Understanding Your Environment/

Plant Competitors in Your Environment p. 17/

1975/

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S4N2/

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/-/[ALIf you had*D1 two pet dogs and threw*D1 them one bone, ]what would happen?*- /-/They would probably both run*- (for the bone. )/-/Maybe they would stand*- (over it )and growl.*- /-/They might even fight*- (for it. )/-/Eventually one (of the dogs )would get*D1 the bone. /-/The other dog would get*D1 nothing. /-/This is*N1 an example (of competition. )/-/The dogs are*N1 competitors kumPETuhturz.=APR01 /-/(In this case )two individuals, called=P--02 competitors, are after*D1 the same thing. /-/One competitor wins,*- /C/and one competitor loses.*- /-/All living=P--01 things (in the environment )compete*- (with one another. )/-/They compete*- (for the matter and energy )(in the environment. )/-/They also compete*- (for space )to live.=IAJ020 /-/Take*D1 plants, (for example. )/-/All (of them )must compete*- (for space )to grow.=IAJ020 /-/Most (of them )must compete*- (for sunlight and water. )/-/(Of course, )plants don't know*D1 [DOthey are competing.*- ]/-/Plant competition is*N1 more (than survival )(of single plants. )/-/(For example, )you might have seen*D1 a young tree growing=P--04 (beside a dandelion. )/-/The dandelion, and its offspring, may survive*- (for a few years. )/-/The tree, however, can live*- (for many years. )/-/It will probably grow*A1 tall. /-/Eventually its leaves will capture*D1 most (of the sunlight. )/-/Its roots will capture*D1 most (of the water. )/-/(In this competition, )the tree will most likely win.*- /-/The dandelion will lose*D1 the competition [ARif it cannot get*D2 sunlight and water. ]/-/Some plants are*A1 more useful (to man )[ARthan others are.*A0 ]/-/Man may use*D them (for food, houses, or paper. )/c/But all these useful plants have*D1 competitors (in their environment. )!!!!!!!!