Organic compounds contain what type of bonds

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?