You must know that alveoli play a crucial role of respiration. It has a large surface area with very thin walls which is richly supplied with blood vessels.
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The nucleus has a two-layered covering called the nuclear membrane. The nuclear membrane contains pores that allow the transfer of material from inside the nucleus to the outside.
False, xylem fibres are mainly supportive in function. Xylem parenchyma stores food and helps in sideways conduction of water.
i. It is almost irreversible ii. Of the misconception that it will reduce sexual urge/drive iii. It is a surgical procedure iv. Of lack of sufficient facilities in many parts of the country
12th Biology Chapter-4 Reproductive Health MCQ Solutions Class 12 Science Biology Terminal Exams MCQ Solutions 12th Biology NCERT Syllabus MCQ Questions 12th Biology Science Session 2022-23