Although herbaceous stems all have the same basic tissues, the arrangement of tissues varies considerably. a. Herbaceous dicot stems have vascular bundles arranged in a circle (ring) in x-section, and have a distinct cortex and pith. b. Herbaceous monocot stems have scattered vascular bundles and ground tissue instead of a distinct cortex and pith.
Acute pharyngitis remains contagious till the fever and other symptoms are not cured, it may take 48 to 72 hours to get relief from pain and fever when a person is on antibiotics therapy in streptococcus infection.
Sore throat caused by viruses is usually contagious as long as symptoms are present. Once the symptoms disappear, the person is usually no longer contagious and iscured of viral pharyngitis. However, the person may still be susceptible to other types of viruses that can cause pharyngitis.