What are the three molecules the cell membrane is primarily made of?

Hey me with this one❤☺❤ how do you say that a cell also has a life span and death like an organism? give one example.

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?

In the united states there are strict fishing seasons and limits, but not all countries enforce similar laws. in bangladesh there are few if any fishing restrictions. what might be the reason for less restrictions in smaller countries like bangladesh? a) the united states is the only country worried about overfishing. b) the united states wants to limit the supply of fish to increase the price. c) bangladesh and smaller countries have an unlimited supply of fish in their coastal waters. d) small countries, such as bangladesh, are practicing subsistence fishing, taking only the fish needed to survive.