Astudent writes in a laboratory notebook: i placed a piece of iron in a beaker of water and the iron sank to the bottom of the beaker. -- what the student wrote in the laboratory notebook is an example of a(n) *
1. observation
2. prediction
3. inference
hypothesis

Ineed a chemical reaction takes place in which erlergy is released. arrange the reaction's characteristics in order from start to finis lower energy of reactants higher energy of products higher energy of reactants transition state sd lower energy of products

Which of the following statements most accurately describes convergent evolution? the process in which two similar species evolve separately from each other and share similar characteristics the process in which a single species evolves into two or more new species the process in which two entirely different species evolve in response to each other the process in which two different species evolve separately from each other but still share similar characteristics

Which substance contains thylakoids? a) nadph b)atp c)stroma d)chloroplast