Estructura celular por medio de la cual se da a cabo el intercambio de sustancias en las bacterias​

What characteristic make legumes a good food source for food insecure populations

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

Which of the following is a reason why early living organisms on earth could not have survived on the surface? 1. the lack of an ozone layer 2. the lack of oxygen in the atmosphere 3. the fact that these organisms were single-celled