Elliott grows a sunflower in his greenhouse, and he records the daily growth in mass. The sunflower seems to grow out of nothing, contrary to the Law of Conservation of Mass. However, he forgets that matter can enter and escape plants. What is the sunflower an example of? A. a reactant
B. a closed system
C. an open system
D. a product

The table lists the observations students made about four specimens under a microscope. based on these observations, what specimens did the students examine? animal plant virus prokaryote cell membrane present ribosomes present lysosomes present nuclear membrane present cell wall present ribosomes present nuclear membrane absent cell wall present ribosomes present nucleus present large vacuole present reproduces inside of a cell nucleus absent rna present 2019 edmentum all rights reserved intl