Which of the following best describes the features of an open system? an open system exchanges nothing with other systems. an open system exchanges only matter with another system. an open system exchanges only energy with another system. an open system exchanges matter and/or energy with another system.

What happens when a magniseum ion ia atracked to a chlrene ion

What's wrong with this ecological pyramid? (multiple choice)1. secondary consumers should be at the bottom of the pyramid2. the sun has an arrow leading to decomposers 3. primary consumers should come after the sun4. energy retained should increase from the bottom to the top5. the sun should be at the bottom of the pyramid

Jane has a sprained ankle, and her doctor gave her a prescription that states: “ibuprofen caps 200 mg tid po.” what does this prescription say, in spelled-out form?