Which lists three units of an organ system in order from the simplest to the most complex? red blood cell → heart → tissue skeleton → bone → bone cell muscle cell → muscle tissue → stomach lung tissue → lung → circulatory system

What occurs to the cell during mitosis

What molecules does hemoglobin decay into over time

For the strategies below, decide whether they are best described as demand-side solutions or supply-side solutions to meeting human needs for fresh water. remember that a demand-side solution reduces demand for fresh water, whereas a supply-side solution increases the supply of fresh water. (a) damming a river to create a reservoir (b) desalinating seawater (c) a nation invading a neighboring country to access their rivers (d) raising water prices for consumers and businesses (e) providing tax breaks for companies that use less water (f) replacing inefficient irrigation with more-efficient drip irrigation to grow crops (g) requiring low-flow showerheads in all new homes