Which statements describe the cell membrane? Check all that apply.

1. It only allows certain materials to leave the cell.
2. It allows all materials to leave the cell.
3. It only allows certain materials to enter the cell.
4. It allows all materials to enter the cell.
5. It helps the cell get rid of waste.
6. It brings waste into the cell for storage.

Which class of molecules contains the amino group, nh2 (a) sugars (b) water (c) proteins (d) hydrocarbons

Why does the alligator have one of the strongest bite force and why does it run so fast i need to know i live in florida

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research.b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research.c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data.d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)