I need an excuse to skip my first period ..

What materials must dams have to produce electricity, and what must occur?

This is collection of data made by comparing objects in standard units. in science, the units are metric.

True or false: (a) the strings of little red dots represent carbohydrates. (b) the model is called a bilayer because there are two main types of molecules present, lipids and proteins. (c) the many black lines represent amino acid tails. (d) this model shows membrane transport. (e) the blue ovals are hydrophobic. (f) the blue ovals represent phospholipid heads.