Describe modifications of Protective Stem with suitable e.g. Pitter John Describe modifications of Protective Stem with suitable e.g.2011-08-29T07:06:47+00:00 › Forums › Assignment Help › Describe modifications of Protective Stem with suitable e.g. Tagged: Biology Assignment Help, biology tutors, online biology tutors, protective stem, protective stems This topic contains 1 reply, has 2 voices, and was last updated by Aakanksha 9 years, 1 month ago. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts August 29, 2011 at 7:06 am #495 Pitter JohnParticipant Describe modifications of protective stem with suitable e.g. August 29, 2011 at 7:10 am #9063 AakankshaParticipant Answer: Protective Stems Example: Thorns The stem in bougainvillea and citrus plants (like lemon and orange) bear sharp, pointed structures called thorns, which provide protection to the plant from herbivores. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic.