Cystic fibrosis is a recessive hereditary disease. The parents of children who have cystic fibrosis each carry one normal CFTR gene and one mutated CFTR gene. Choose the numbers to finish the sentence. If both parents each carry one mutated CFTR gene,
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of their children will probably have cystic fibrosis,
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of their children will probably be carriers, and
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of their children will probably not have cystic fibrosis or carry the mutated gene.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

glacial erosion, the picking up and movement of earth beneath a glacier, is also referred to as plucking. erosion and transportation of individual pieces of bedrock, especially large "joint block occur as a result of this glacial erosion. plucking is type of erosion in which rocks become frozen into the bottom and sides of the glacier.as the glacier moves downhill it 'plucks' the rocks frozen into the glacier from the ground.