The tough border around plant, fungal, and bacterial cells is called cell membrane, ribosomes, cell wall, cytoplasm.

As a small change in a person's dna can cause a genetic disorder

The ruiz family is exchanging euros for us dollars. the exchange rate is 1 euro equals 1.35261 usd. since the ruiz family knows that usd are stated to the nearest hundredth of a dollar, they used the conversion ratio

How do ratio scale and diagrammatic scale work