Can genes affect the range and existence of certain traits

Which is the lipid molecule that controls what types of molecules can pass though?

Felicia has a respiratory infection and has been coughing up a lot of mucus. she knows this means that her respiratory system is working to restore balance by getting rid of the invasive materials from her lungs. how does this happen?

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing