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.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

3. is true i think i should be right

Your answer is water because there is combined mass of water found on, under, and over the surface of a planet. your answer is water.