Ecology And Environment


 

Ecology And Environment logoSubject: Biology    Exam: WBJEEM Medical

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Important Points

No formulae are there for this chapter, please refer to notes and tips and tricks for important points
No formulae are there for this chapter, please refer to notes and tips and tricks for important points
No formulae are there for this chapter, please refer to notes and tips and tricks for important points
Xerophytes have a very low area/volume ratio of their body, a very high root /shoot ratio, highly developed xylem and sclerenchyma in general. They have a thick cuticle, stomata either sunken or present in pits/crypts as in Nerium, and commonly possess a multiple epidermis . Most adapted xerophytes like cacti and succulents even possess nocturnally opening (scotoactive) stomata.
Notable dates with reference to environment are : February 2 (World Wetlands Day) , March 21 (World Forestry Day), April 22 (Earth Day) , June 5 (World Environment Day), July 6 (Vanmahotsav), July 11 (World Population Day), October 1 to 7 (Wildlife week), November 1 (World Ecology Day) , and December 3 (World Conservation Day).
 
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