Thylacosmilus is a marsupial and Smilodon is a mammal Thylacosmilus and Smilodon both have saber teeth, but they do not
share an ancestor that had saber teeth What are saber teeth for these organisms?
analogous structures
homologous structures
vestigial structures
mutated structures
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Salam

Sugar + oxygen > carbon  dioxide + water + energy  c6h1206 + 6o2 > 6co2 +6h2o + energy  and the numbers after the element symbols are small.     

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.