es un ácido nucleico que está formado por una sola cadena de nucleótidos, por un azúcar ribosa y se localiza en el citoplasma de la célula

What’s this animal (picture is tagged) and where is it most likely to live, rainforest or desert?

Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.

What controls activities within a eukaryotic cell?