1. What is the name of the molecule that is found in between the Phosopholipids? What is its role? 2. There are a number of different proteins within the Cell membrane, name two and their roles?
3.Are all cell membranes the same? Why/Why not?

Which of these statements best describes the st. lawrence seaway? the st. lawrence seaway connects the st. lawrence river with the arctic ocean. the st. lawrence seaway provides an important trading route between the u. s. and mexico. the st. lawrence seaway provides an important trading route for the u. s, but has little value for canada. the st. lawrence seaway connects the great lakes, the st. lawrence river, and the atlantic ocean.

Which of the following is a way that minerals are used? a. industry construction technology d. all of the above

Which of the following is a period in the paleozoic era? devonian cambrian permian all of the above