What is the main purpose of seeds in plants that have them​

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants.d- food molecules are broken down in the cells if living things.

If garbage is left on the street flies in microbes can arise from nothing to feed on it true or false

Under which of the following circumstances would natural selection not operate on an organism