Answer:
An organ that helps with digestion but is not part of the digestive tract. The accessory digestive organs are the tongue, salivary glands, pancreas, liver, and gallbladder.
Answer:
They all have citric acid and other acids in them... which is the sour taste...
Explanation:
also prolly sounds dum.b the way i did it....
Las actividades económicas tienen que ver con la obtención de alimentación, medicinas, madera y leña. Además de la elaboración de carbón y materiales para curtir pieles. Además de eso ha habido visitas turisticas, la pesca deportiva y la observación de aves. La verdad ha sido mas el perjuicio que el beneficio. El beneficio es completamente económico pero entre los perjuicios esta la contaminación del agua por la construcción de presas y el cambio de suelos por la contruccion de varios proyectos
Answer:
Reproduction, heredity, variation in fitness or organisms.
Explanation:
Evolution occurs in organisms due to natural selection process because natural resources are limited. Evolution is the change in the characteristics of a species over several generations. If evolution occurs in the organisms so these evoluted organisms can survive rate more than those organisms where no evolution occurs because the evoluted organisms can adopt successfully the features of environment. Reproduction, heredity, variation in fitness or organisms are the four factors needed for natural selection to act.