General Knowledge - Biology
Exercise : Biology - Section 1
- Biology - Section 1
21.
Primary phloem develops from
22.
Other than spreading malaria, anopheles mosquitoes are also vectors of
23.
Plants that grow in saline water are called
24.
Pyorrhoea is a disease of the
Answer: Option
Explanation:
Pyorrhoea, or periodontal disease, to give it a proper medical term, is a disease of the gums, it is one of the most widely prevalent diseases. It affects the membrane surrounding the roots of the teeth and leads to loosening of the teeth, pus formation, and shrinkage of the gum. This disease is the primary cause for tooth loss among adults.
25.
O2 released in the process of photosynthesis comes from
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