Ap biology exam 2025 Study guides, Class notes & Summaries

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AP Biology Unit 1, AP Biology Unit 2 Study Guide with Complete Solutions Matter - Answer️️ -Anything that takes up space and has mass. Element - Answer️️ -Substance that cannot be broken down to other substances through chemical reactions. Each has a symbol. 92 occurring in nature. Compound - Answer️️ -Substance consisting of two or more different elements combined in a fixed ratio. *Characteristics different than those of its elements CHON - Answer️️ -4 elements essentia...

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Ap biology exam 2020 Latest Update with Solutions how many elements are required for life - Answer -25 what elements make up 96% of living things? - Answer -C, H, O, N what elements make up the remaining 4% of living things? - Answer -P, S, Ca, K trace elements - Answer -required by an organism in only minute quantities what are examples of trace elements? - Answer -Fe: get it from things like spinach, meats, cereal I: get it from salt what are atoms? - Answer -smallest units of matter ...

AP Biology Practice Exam Questions and Answers (2024 / 2025) (Verified Answers)