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Beatriz is creating graphs for her city’s Parks Department. Beatriz is trying to persuade the Parks Department to put in more
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2. 532 views
Narwhals are aquatic mammals known for the giant tusk that protrudes from their upper lip. These mammals live in artic waters
1. 3 answers
2. 2,464 views
Niles Eldredge found evidence in trilobite fossils of a pattern of evolution in which short periods of large change are mixed in
1. 2 answers
2. 1,121 views

a farmer sprays insecticide on his crops and notices that the insect pest problems disappear. a year later he tries the same insecticide only to find that he did not achieve the same result. the insect population shows resistance to the insecticide. This

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