Dentro de la clasificación principal de las células, tenemos dos tipos que son:

What protects the lining of the stomach from acidic gastric juices?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment